21551867910

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1063}}^1\times {\mathrm{1231}}^1$

素因数の和:2371

約数の個数: 128

約数和(自身を含む): 58516254720

約数和(自身を除く): 36964386810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 61, 90, 122, 135, 183, 270, 305, 366, 549, 610, 915, 1063, 1098, 1231, 1647, 1830, 2126, 2462, 2745, 3189, 3294, 3693, 5315, 5490, 6155, 6378, 7386, 8235, 9567, 10630, 11079, 12310, 15945, 16470, 18465, 19134, 22158, 28701, 31890, 33237, 36930, 47835, 55395, 57402, 64843, 66474, 75091, 95670, 110790, 129686, 143505, 150182, 166185, 194529, 225273, 287010, 324215, 332370, 375455, 389058, 450546, 583587, 648430, 675819, 750910, 972645, 1126365, 1167174, 1308553, 1351638, 1750761, 1945290, 2027457, 2252730, 2617106, 2917935, 3379095, 3501522, 3925659, 4054914, 5835870, 6542765, 6758190, 7851318, 8753805, 10137285, 11776977, 13085530, 17507610, 19628295, 20274570, 23553954, 35330931, 39256590, 58884885, 70661862, 79821733, 117769770, 159643466, 176654655, 239465199, 353309310, 399108665, 478930398, 718395597, 798217330, 1197325995, 1436791194, 2155186791, 2394651990, 3591977985, 4310373582, 7183955970, 10775933955, 21551867910]

約数ペア:

[(1, 21551867910), (2, 10775933955), (3, 7183955970), (5, 4310373582), (6, 3591977985), (9, 2394651990), (10, 2155186791), (15, 1436791194), (18, 1197325995), (27, 798217330), (30, 718395597), (45, 478930398), (54, 399108665), (61, 353309310), (90, 239465199), (122, 176654655), (135, 159643466), (183, 117769770), (270, 79821733), (305, 70661862), (366, 58884885), (549, 39256590), (610, 35330931), (915, 23553954), (1063, 20274570), (1098, 19628295), (1231, 17507610), (1647, 13085530), (1830, 11776977), (2126, 10137285), (2462, 8753805), (2745, 7851318), (3189, 6758190), (3294, 6542765), (3693, 5835870), (5315, 4054914), (5490, 3925659), (6155, 3501522), (6378, 3379095), (7386, 2917935), (8235, 2617106), (9567, 2252730), (10630, 2027457), (11079, 1945290), (12310, 1750761), (15945, 1351638), (16470, 1308553), (18465, 1167174), (19134, 1126365), (22158, 972645), (28701, 750910), (31890, 675819), (33237, 648430), (36930, 583587), (47835, 450546), (55395, 389058), (57402, 375455), (64843, 332370), (66474, 324215), (75091, 287010), (95670, 225273), (110790, 194529), (129686, 166185), (143505, 150182)]