20563974

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:445

約数の個数: 48

約数和(自身を含む): 46500480

約数和(自身を除く): 25936506

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 137, 186, 269, 274, 279, 411, 538, 558, 807, 822, 1233, 1614, 2421, 2466, 4247, 4842, 8339, 8494, 12741, 16678, 25017, 25482, 36853, 38223, 50034, 73706, 75051, 76446, 110559, 150102, 221118, 331677, 663354, 1142443, 2284886, 3427329, 6854658, 10281987, 20563974]

約数ペア:

[(1, 20563974), (2, 10281987), (3, 6854658), (6, 3427329), (9, 2284886), (18, 1142443), (31, 663354), (62, 331677), (93, 221118), (137, 150102), (186, 110559), (269, 76446), (274, 75051), (279, 73706), (411, 50034), (538, 38223), (558, 36853), (807, 25482), (822, 25017), (1233, 16678), (1614, 12741), (2421, 8494), (2466, 8339), (4247, 4842)]