20702898

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 48844800

約数和(自身を除く): 28141902

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 79, 138, 158, 207, 211, 237, 414, 422, 474, 621, 633, 711, 1242, 1266, 1422, 1817, 1899, 2133, 3634, 3798, 4266, 4853, 5451, 5697, 9706, 10902, 11394, 14559, 16353, 16669, 29118, 32706, 33338, 43677, 49059, 50007, 87354, 98118, 100014, 131031, 150021, 262062, 300042, 383387, 450063, 766774, 900126, 1150161, 2300322, 3450483, 6900966, 10351449, 20702898]

約数ペア:

[(1, 20702898), (2, 10351449), (3, 6900966), (6, 3450483), (9, 2300322), (18, 1150161), (23, 900126), (27, 766774), (46, 450063), (54, 383387), (69, 300042), (79, 262062), (138, 150021), (158, 131031), (207, 100014), (211, 98118), (237, 87354), (414, 50007), (422, 49059), (474, 43677), (621, 33338), (633, 32706), (711, 29118), (1242, 16669), (1266, 16353), (1422, 14559), (1817, 11394), (1899, 10902), (2133, 9706), (3634, 5697), (3798, 5451), (4266, 4853)]