21953412

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{769}}^1$

素因数の和:853

約数の個数: 72

約数和(自身を含む): 60820760

約数和(自身を除く): 38867348

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 61, 78, 117, 122, 156, 183, 234, 244, 366, 468, 549, 732, 769, 793, 1098, 1538, 1586, 2196, 2307, 2379, 3076, 3172, 4614, 4758, 6921, 7137, 9228, 9516, 9997, 13842, 14274, 19994, 27684, 28548, 29991, 39988, 46909, 59982, 89973, 93818, 119964, 140727, 179946, 187636, 281454, 359892, 422181, 562908, 609817, 844362, 1219634, 1688724, 1829451, 2439268, 3658902, 5488353, 7317804, 10976706, 21953412]

約数ペア:

[(1, 21953412), (2, 10976706), (3, 7317804), (4, 5488353), (6, 3658902), (9, 2439268), (12, 1829451), (13, 1688724), (18, 1219634), (26, 844362), (36, 609817), (39, 562908), (52, 422181), (61, 359892), (78, 281454), (117, 187636), (122, 179946), (156, 140727), (183, 119964), (234, 93818), (244, 89973), (366, 59982), (468, 46909), (549, 39988), (732, 29991), (769, 28548), (793, 27684), (1098, 19994), (1538, 14274), (1586, 13842), (2196, 9997), (2307, 9516), (2379, 9228), (3076, 7137), (3172, 6921), (4614, 4758)]