21000366303

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2677}}^1\times {\mathrm{19661}}^1$

素因数の和:22367

約数の個数: 32

約数和(自身を含む): 33699095040

約数和(自身を除く): 12698728737

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 2677, 8031, 18739, 19661, 50863, 56217, 58983, 137627, 152589, 356041, 373559, 412881, 1068123, 1120677, 2614913, 7844739, 52632497, 157897491, 368427479, 1000017443, 1105282437, 3000052329, 7000122101, 21000366303]

約数ペア:

[(1, 21000366303), (3, 7000122101), (7, 3000052329), (19, 1105282437), (21, 1000017443), (57, 368427479), (133, 157897491), (399, 52632497), (2677, 7844739), (8031, 2614913), (18739, 1120677), (19661, 1068123), (50863, 412881), (56217, 373559), (58983, 356041), (137627, 152589)]