21801156

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 58329600

約数和(自身を除く): 36528444

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 29, 39, 52, 58, 61, 78, 79, 87, 116, 122, 156, 158, 174, 183, 237, 244, 316, 348, 366, 377, 474, 732, 754, 793, 948, 1027, 1131, 1508, 1586, 1769, 2054, 2262, 2291, 2379, 3081, 3172, 3538, 4108, 4524, 4582, 4758, 4819, 5307, 6162, 6873, 7076, 9164, 9516, 9638, 10614, 12324, 13746, 14457, 19276, 21228, 22997, 27492, 28914, 29783, 45994, 57828, 59566, 62647, 68991, 89349, 91988, 119132, 125294, 137982, 139751, 178698, 187941, 250588, 275964, 279502, 357396, 375882, 419253, 559004, 751764, 838506, 1677012, 1816763, 3633526, 5450289, 7267052, 10900578, 21801156]

約数ペア:

[(1, 21801156), (2, 10900578), (3, 7267052), (4, 5450289), (6, 3633526), (12, 1816763), (13, 1677012), (26, 838506), (29, 751764), (39, 559004), (52, 419253), (58, 375882), (61, 357396), (78, 279502), (79, 275964), (87, 250588), (116, 187941), (122, 178698), (156, 139751), (158, 137982), (174, 125294), (183, 119132), (237, 91988), (244, 89349), (316, 68991), (348, 62647), (366, 59566), (377, 57828), (474, 45994), (732, 29783), (754, 28914), (793, 27492), (948, 22997), (1027, 21228), (1131, 19276), (1508, 14457), (1586, 13746), (1769, 12324), (2054, 10614), (2262, 9638), (2291, 9516), (2379, 9164), (3081, 7076), (3172, 6873), (3538, 6162), (4108, 5307), (4524, 4819), (4582, 4758)]