20978772

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 50379840

約数和(自身を除く): 29401068

約数列:

[1, 2, 3, 4, 6, 12, 67, 97, 134, 194, 201, 268, 269, 291, 388, 402, 538, 582, 804, 807, 1076, 1164, 1614, 3228, 6499, 12998, 18023, 19497, 25996, 26093, 36046, 38994, 52186, 54069, 72092, 77988, 78279, 104372, 108138, 156558, 216276, 313116, 1748231, 3496462, 5244693, 6992924, 10489386, 20978772]

約数ペア:

[(1, 20978772), (2, 10489386), (3, 6992924), (4, 5244693), (6, 3496462), (12, 1748231), (67, 313116), (97, 216276), (134, 156558), (194, 108138), (201, 104372), (268, 78279), (269, 77988), (291, 72092), (388, 54069), (402, 52186), (538, 38994), (582, 36046), (804, 26093), (807, 25996), (1076, 19497), (1164, 18023), (1614, 12998), (3228, 6499)]