21447972

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6547}}^1$

素因数の和:6577

約数の個数: 72

約数和(自身を含む): 66737216

約数和(自身を除く): 45289244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 6547, 13094, 19641, 26188, 39282, 45829, 58923, 78564, 85111, 91658, 117846, 137487, 170222, 183316, 235692, 255333, 274974, 340444, 412461, 510666, 549948, 595777, 765999, 824922, 1021332, 1191554, 1531998, 1649844, 1787331, 2383108, 3063996, 3574662, 5361993, 7149324, 10723986, 21447972]

約数ペア:

[(1, 21447972), (2, 10723986), (3, 7149324), (4, 5361993), (6, 3574662), (7, 3063996), (9, 2383108), (12, 1787331), (13, 1649844), (14, 1531998), (18, 1191554), (21, 1021332), (26, 824922), (28, 765999), (36, 595777), (39, 549948), (42, 510666), (52, 412461), (63, 340444), (78, 274974), (84, 255333), (91, 235692), (117, 183316), (126, 170222), (156, 137487), (182, 117846), (234, 91658), (252, 85111), (273, 78564), (364, 58923), (468, 45829), (546, 39282), (819, 26188), (1092, 19641), (1638, 13094), (3276, 6547)]