21765590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1229}}^1$

素因数の和:1277

約数の個数: 64

約数和(自身を含む): 51010560

約数和(自身を除く): 29244970

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 55, 70, 77, 110, 115, 154, 161, 230, 253, 322, 385, 506, 770, 805, 1229, 1265, 1610, 1771, 2458, 2530, 3542, 6145, 8603, 8855, 12290, 13519, 17206, 17710, 27038, 28267, 43015, 56534, 67595, 86030, 94633, 135190, 141335, 189266, 197869, 282670, 310937, 395738, 473165, 621874, 946330, 989345, 1554685, 1978690, 2176559, 3109370, 4353118, 10882795, 21765590]

約数ペア:

[(1, 21765590), (2, 10882795), (5, 4353118), (7, 3109370), (10, 2176559), (11, 1978690), (14, 1554685), (22, 989345), (23, 946330), (35, 621874), (46, 473165), (55, 395738), (70, 310937), (77, 282670), (110, 197869), (115, 189266), (154, 141335), (161, 135190), (230, 94633), (253, 86030), (322, 67595), (385, 56534), (506, 43015), (770, 28267), (805, 27038), (1229, 17710), (1265, 17206), (1610, 13519), (1771, 12290), (2458, 8855), (2530, 8603), (3542, 6145)]