21912030

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{34781}}^1$

素因数の和:34801

約数の個数: 48

約数和(自身を含む): 65111904

約数和(自身を除く): 43199874

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 34781, 69562, 104343, 173905, 208686, 243467, 313029, 347810, 486934, 521715, 626058, 730401, 1043430, 1217335, 1460802, 1565145, 2191203, 2434670, 3130290, 3652005, 4382406, 7304010, 10956015, 21912030]

約数ペア:

[(1, 21912030), (2, 10956015), (3, 7304010), (5, 4382406), (6, 3652005), (7, 3130290), (9, 2434670), (10, 2191203), (14, 1565145), (15, 1460802), (18, 1217335), (21, 1043430), (30, 730401), (35, 626058), (42, 521715), (45, 486934), (63, 347810), (70, 313029), (90, 243467), (105, 208686), (126, 173905), (210, 104343), (315, 69562), (630, 34781)]