21741330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{521}}^1$

素因数の和:651

約数の個数: 64

約数和(自身を含む): 56827008

約数和(自身を除く): 35085678

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 107, 130, 195, 214, 321, 390, 521, 535, 642, 1042, 1070, 1391, 1563, 1605, 2605, 2782, 3126, 3210, 4173, 5210, 6773, 6955, 7815, 8346, 13546, 13910, 15630, 20319, 20865, 33865, 40638, 41730, 55747, 67730, 101595, 111494, 167241, 203190, 278735, 334482, 557470, 724711, 836205, 1449422, 1672410, 2174133, 3623555, 4348266, 7247110, 10870665, 21741330]

約数ペア:

[(1, 21741330), (2, 10870665), (3, 7247110), (5, 4348266), (6, 3623555), (10, 2174133), (13, 1672410), (15, 1449422), (26, 836205), (30, 724711), (39, 557470), (65, 334482), (78, 278735), (107, 203190), (130, 167241), (195, 111494), (214, 101595), (321, 67730), (390, 55747), (521, 41730), (535, 40638), (642, 33865), (1042, 20865), (1070, 20319), (1391, 15630), (1563, 13910), (1605, 13546), (2605, 8346), (2782, 7815), (3126, 6955), (3210, 6773), (4173, 5210)]