21291245990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{569}}^1\times {\mathrm{534553}}^1$

素因数の和:535136

約数の個数: 32

約数和(自身を含む): 43876192320

約数和(自身を除く): 22584946330

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 569, 1138, 2845, 3983, 5690, 7966, 19915, 39830, 534553, 1069106, 2672765, 3741871, 5345530, 7483742, 18709355, 37418710, 304160657, 608321314, 1520803285, 2129124599, 3041606570, 4258249198, 10645622995, 21291245990]

約数ペア:

[(1, 21291245990), (2, 10645622995), (5, 4258249198), (7, 3041606570), (10, 2129124599), (14, 1520803285), (35, 608321314), (70, 304160657), (569, 37418710), (1138, 18709355), (2845, 7483742), (3983, 5345530), (5690, 3741871), (7966, 2672765), (19915, 1069106), (39830, 534553)]