21000608670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{521}}^1\times {\mathrm{8243}}^1$

素因数の和:8937

約数の個数: 64

約数和(自身を含む): 50814169344

約数和(自身を除く): 29813560674

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 163, 326, 489, 521, 815, 978, 1042, 1563, 1630, 2445, 2605, 3126, 4890, 5210, 7815, 8243, 15630, 16486, 24729, 41215, 49458, 82430, 84923, 123645, 169846, 247290, 254769, 424615, 509538, 849230, 1273845, 1343609, 2547690, 2687218, 4030827, 4294603, 6718045, 8061654, 8589206, 12883809, 13436090, 20154135, 21473015, 25767618, 40308270, 42946030, 64419045, 128838090, 700020289, 1400040578, 2100060867, 3500101445, 4200121734, 7000202890, 10500304335, 21000608670]

約数ペア:

[(1, 21000608670), (2, 10500304335), (3, 7000202890), (5, 4200121734), (6, 3500101445), (10, 2100060867), (15, 1400040578), (30, 700020289), (163, 128838090), (326, 64419045), (489, 42946030), (521, 40308270), (815, 25767618), (978, 21473015), (1042, 20154135), (1563, 13436090), (1630, 12883809), (2445, 8589206), (2605, 8061654), (3126, 6718045), (4890, 4294603), (5210, 4030827), (7815, 2687218), (8243, 2547690), (15630, 1343609), (16486, 1273845), (24729, 849230), (41215, 509538), (49458, 424615), (82430, 254769), (84923, 247290), (123645, 169846)]