21276390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1$

素因数の和:421

約数の個数: 64

約数和(自身を含む): 54316800

約数和(自身を除く): 33040410

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 163, 190, 229, 285, 326, 458, 489, 570, 687, 815, 978, 1145, 1374, 1630, 2290, 2445, 3097, 3435, 4351, 4890, 6194, 6870, 8702, 9291, 13053, 15485, 18582, 21755, 26106, 30970, 37327, 43510, 46455, 65265, 74654, 92910, 111981, 130530, 186635, 223962, 373270, 559905, 709213, 1119810, 1418426, 2127639, 3546065, 4255278, 7092130, 10638195, 21276390]

約数ペア:

[(1, 21276390), (2, 10638195), (3, 7092130), (5, 4255278), (6, 3546065), (10, 2127639), (15, 1418426), (19, 1119810), (30, 709213), (38, 559905), (57, 373270), (95, 223962), (114, 186635), (163, 130530), (190, 111981), (229, 92910), (285, 74654), (326, 65265), (458, 46455), (489, 43510), (570, 37327), (687, 30970), (815, 26106), (978, 21755), (1145, 18582), (1374, 15485), (1630, 13053), (2290, 9291), (2445, 8702), (3097, 6870), (3435, 6194), (4351, 4890)]