21448518

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{241}}^1$

素因数の和:429

約数の個数: 64

約数和(自身を含む): 53340672

約数和(自身を除く): 31892154

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 163, 182, 241, 273, 326, 482, 489, 546, 723, 978, 1141, 1446, 1687, 2119, 2282, 3133, 3374, 3423, 4238, 5061, 6266, 6357, 6846, 9399, 10122, 12714, 14833, 18798, 21931, 29666, 39283, 43862, 44499, 65793, 78566, 88998, 117849, 131586, 235698, 274981, 510679, 549962, 824943, 1021358, 1532037, 1649886, 3064074, 3574753, 7149506, 10724259, 21448518]

約数ペア:

[(1, 21448518), (2, 10724259), (3, 7149506), (6, 3574753), (7, 3064074), (13, 1649886), (14, 1532037), (21, 1021358), (26, 824943), (39, 549962), (42, 510679), (78, 274981), (91, 235698), (163, 131586), (182, 117849), (241, 88998), (273, 78566), (326, 65793), (482, 44499), (489, 43862), (546, 39283), (723, 29666), (978, 21931), (1141, 18798), (1446, 14833), (1687, 12714), (2119, 10122), (2282, 9399), (3133, 6846), (3374, 6357), (3423, 6266), (4238, 5061)]