21812784

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{64919}}^1$

素因数の和:64937

約数の個数: 40

約数和(自身を含む): 64400640

約数和(自身を除く): 42587856

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 64919, 129838, 194757, 259676, 389514, 454433, 519352, 779028, 908866, 1038704, 1363299, 1558056, 1817732, 2726598, 3116112, 3635464, 5453196, 7270928, 10906392, 21812784]

約数ペア:

[(1, 21812784), (2, 10906392), (3, 7270928), (4, 5453196), (6, 3635464), (7, 3116112), (8, 2726598), (12, 1817732), (14, 1558056), (16, 1363299), (21, 1038704), (24, 908866), (28, 779028), (42, 519352), (48, 454433), (56, 389514), (84, 259676), (112, 194757), (168, 129838), (336, 64919)]