21609666

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:389

約数の個数: 80

約数和(自身を含む): 53991168

約数和(自身を除く): 32381502

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 31, 39, 54, 62, 78, 81, 93, 117, 162, 186, 234, 279, 331, 351, 403, 558, 662, 702, 806, 837, 993, 1053, 1209, 1674, 1986, 2106, 2418, 2511, 2979, 3627, 4303, 5022, 5958, 7254, 8606, 8937, 10261, 10881, 12909, 17874, 20522, 21762, 25818, 26811, 30783, 32643, 38727, 53622, 61566, 65286, 77454, 92349, 116181, 133393, 184698, 232362, 266786, 277047, 348543, 400179, 554094, 697086, 800358, 831141, 1200537, 1662282, 2401074, 3601611, 7203222, 10804833, 21609666]

約数ペア:

[(1, 21609666), (2, 10804833), (3, 7203222), (6, 3601611), (9, 2401074), (13, 1662282), (18, 1200537), (26, 831141), (27, 800358), (31, 697086), (39, 554094), (54, 400179), (62, 348543), (78, 277047), (81, 266786), (93, 232362), (117, 184698), (162, 133393), (186, 116181), (234, 92349), (279, 77454), (331, 65286), (351, 61566), (403, 53622), (558, 38727), (662, 32643), (702, 30783), (806, 26811), (837, 25818), (993, 21762), (1053, 20522), (1209, 17874), (1674, 12909), (1986, 10881), (2106, 10261), (2418, 8937), (2511, 8606), (2979, 7254), (3627, 5958), (4303, 5022)]