21095370

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 128

約数和(自身を含む): 60825600

約数和(自身を除く): 39730230

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 43, 45, 46, 54, 69, 79, 86, 90, 115, 129, 135, 138, 158, 207, 215, 230, 237, 258, 270, 345, 387, 395, 414, 430, 474, 621, 645, 690, 711, 774, 790, 989, 1035, 1161, 1185, 1242, 1290, 1422, 1817, 1935, 1978, 2070, 2133, 2322, 2370, 2967, 3105, 3397, 3555, 3634, 3870, 4266, 4945, 5451, 5805, 5934, 6210, 6794, 7110, 8901, 9085, 9890, 10191, 10665, 10902, 11610, 14835, 16353, 16985, 17802, 18170, 20382, 21330, 26703, 27255, 29670, 30573, 32706, 33970, 44505, 49059, 50955, 53406, 54510, 61146, 78131, 81765, 89010, 91719, 98118, 101910, 133515, 152865, 156262, 163530, 183438, 234393, 245295, 267030, 305730, 390655, 458595, 468786, 490590, 703179, 781310, 917190, 1171965, 1406358, 2109537, 2343930, 3515895, 4219074, 7031790, 10547685, 21095370]

約数ペア:

[(1, 21095370), (2, 10547685), (3, 7031790), (5, 4219074), (6, 3515895), (9, 2343930), (10, 2109537), (15, 1406358), (18, 1171965), (23, 917190), (27, 781310), (30, 703179), (43, 490590), (45, 468786), (46, 458595), (54, 390655), (69, 305730), (79, 267030), (86, 245295), (90, 234393), (115, 183438), (129, 163530), (135, 156262), (138, 152865), (158, 133515), (207, 101910), (215, 98118), (230, 91719), (237, 89010), (258, 81765), (270, 78131), (345, 61146), (387, 54510), (395, 53406), (414, 50955), (430, 49059), (474, 44505), (621, 33970), (645, 32706), (690, 30573), (711, 29670), (774, 27255), (790, 26703), (989, 21330), (1035, 20382), (1161, 18170), (1185, 17802), (1242, 16985), (1290, 16353), (1422, 14835), (1817, 11610), (1935, 10902), (1978, 10665), (2070, 10191), (2133, 9890), (2322, 9085), (2370, 8901), (2967, 7110), (3105, 6794), (3397, 6210), (3555, 5934), (3634, 5805), (3870, 5451), (4266, 4945)]