21662478

素因数分解:

$2^1\times 3^5\times {\mathrm{29}}^2\times {\mathrm{53}}^1$

素因数の和:128

約数の個数: 72

約数和(自身を含む): 51361128

約数和(自身を除く): 29698650

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 53, 54, 58, 81, 87, 106, 159, 162, 174, 243, 261, 318, 477, 486, 522, 783, 841, 954, 1431, 1537, 1566, 1682, 2349, 2523, 2862, 3074, 4293, 4611, 4698, 5046, 7047, 7569, 8586, 9222, 12879, 13833, 14094, 15138, 22707, 25758, 27666, 41499, 44573, 45414, 68121, 82998, 89146, 124497, 133719, 136242, 204363, 248994, 267438, 373491, 401157, 408726, 746982, 802314, 1203471, 2406942, 3610413, 7220826, 10831239, 21662478]

約数ペア:

[(1, 21662478), (2, 10831239), (3, 7220826), (6, 3610413), (9, 2406942), (18, 1203471), (27, 802314), (29, 746982), (53, 408726), (54, 401157), (58, 373491), (81, 267438), (87, 248994), (106, 204363), (159, 136242), (162, 133719), (174, 124497), (243, 89146), (261, 82998), (318, 68121), (477, 45414), (486, 44573), (522, 41499), (783, 27666), (841, 25758), (954, 22707), (1431, 15138), (1537, 14094), (1566, 13833), (1682, 12879), (2349, 9222), (2523, 8586), (2862, 7569), (3074, 7047), (4293, 5046), (4611, 4698)]