21491808

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1013}}^1$

素因数の和:1056

約数の個数: 96

約数和(自身を含む): 64393056

約数和(自身を除く): 42901248

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 32, 34, 39, 48, 51, 52, 68, 78, 96, 102, 104, 136, 156, 204, 208, 221, 272, 312, 408, 416, 442, 544, 624, 663, 816, 884, 1013, 1248, 1326, 1632, 1768, 2026, 2652, 3039, 3536, 4052, 5304, 6078, 7072, 8104, 10608, 12156, 13169, 16208, 17221, 21216, 24312, 26338, 32416, 34442, 39507, 48624, 51663, 52676, 68884, 79014, 97248, 103326, 105352, 137768, 158028, 206652, 210704, 223873, 275536, 316056, 413304, 421408, 447746, 551072, 632112, 671619, 826608, 895492, 1264224, 1343238, 1653216, 1790984, 2686476, 3581968, 5372952, 7163936, 10745904, 21491808]

約数ペア:

[(1, 21491808), (2, 10745904), (3, 7163936), (4, 5372952), (6, 3581968), (8, 2686476), (12, 1790984), (13, 1653216), (16, 1343238), (17, 1264224), (24, 895492), (26, 826608), (32, 671619), (34, 632112), (39, 551072), (48, 447746), (51, 421408), (52, 413304), (68, 316056), (78, 275536), (96, 223873), (102, 210704), (104, 206652), (136, 158028), (156, 137768), (204, 105352), (208, 103326), (221, 97248), (272, 79014), (312, 68884), (408, 52676), (416, 51663), (442, 48624), (544, 39507), (624, 34442), (663, 32416), (816, 26338), (884, 24312), (1013, 21216), (1248, 17221), (1326, 16208), (1632, 13169), (1768, 12156), (2026, 10608), (2652, 8104), (3039, 7072), (3536, 6078), (4052, 5304)]