20963930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1231}}^1$

素因数の和:1382

約数の個数: 32

約数和(自身を含む): 40981248

約数和(自身を除く): 20017318

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 131, 262, 655, 1231, 1310, 1703, 2462, 3406, 6155, 8515, 12310, 16003, 17030, 32006, 80015, 160030, 161261, 322522, 806305, 1612610, 2096393, 4192786, 10481965, 20963930]

約数ペア:

[(1, 20963930), (2, 10481965), (5, 4192786), (10, 2096393), (13, 1612610), (26, 806305), (65, 322522), (130, 161261), (131, 160030), (262, 80015), (655, 32006), (1231, 17030), (1310, 16003), (1703, 12310), (2462, 8515), (3406, 6155)]