21450430

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 44712000

約数和(自身を除く): 23261570

約数列:

[1, 2, 5, 10, 17, 19, 29, 34, 38, 58, 85, 95, 145, 170, 190, 229, 290, 323, 458, 493, 551, 646, 986, 1102, 1145, 1615, 2290, 2465, 2755, 3230, 3893, 4351, 4930, 5510, 6641, 7786, 8702, 9367, 13282, 18734, 19465, 21755, 33205, 38930, 43510, 46835, 66410, 73967, 93670, 112897, 126179, 147934, 225794, 252358, 369835, 564485, 630895, 739670, 1128970, 1261790, 2145043, 4290086, 10725215, 21450430]

約数ペア:

[(1, 21450430), (2, 10725215), (5, 4290086), (10, 2145043), (17, 1261790), (19, 1128970), (29, 739670), (34, 630895), (38, 564485), (58, 369835), (85, 252358), (95, 225794), (145, 147934), (170, 126179), (190, 112897), (229, 93670), (290, 73967), (323, 66410), (458, 46835), (493, 43510), (551, 38930), (646, 33205), (986, 21755), (1102, 19465), (1145, 18734), (1615, 13282), (2290, 9367), (2465, 8702), (2755, 7786), (3230, 6641), (3893, 5510), (4351, 4930)]