31801371

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 50841600

約数和(自身を除く): 19040229

約数列:

[1, 3, 7, 21, 29, 79, 87, 203, 237, 553, 609, 661, 1659, 1983, 2291, 4627, 6873, 13881, 16037, 19169, 48111, 52219, 57507, 134183, 156657, 365533, 402549, 1096599, 1514351, 4543053, 10600457, 31801371]

約数ペア:

[(1, 31801371), (3, 10600457), (7, 4543053), (21, 1514351), (29, 1096599), (79, 402549), (87, 365533), (203, 156657), (237, 134183), (553, 57507), (609, 52219), (661, 48111), (1659, 19169), (1983, 16037), (2291, 13881), (4627, 6873)]