21553560

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2851}}^1$

素因数の和:2878

約数の個数: 128

約数和(自身を含む): 82137600

約数和(自身を除く): 60584040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2851, 3780, 5702, 7560, 8553, 11404, 14255, 17106, 19957, 22808, 25659, 28510, 34212, 39914, 42765, 51318, 57020, 59871, 68424, 76977, 79828, 85530, 99785, 102636, 114040, 119742, 128295, 153954, 159656, 171060, 179613, 199570, 205272, 239484, 256590, 299355, 307908, 342120, 359226, 384885, 399140, 478968, 513180, 538839, 598710, 615816, 718452, 769770, 798280, 898065, 1026360, 1077678, 1197420, 1436904, 1539540, 1796130, 2155356, 2394840, 2694195, 3079080, 3592260, 4310712, 5388390, 7184520, 10776780, 21553560]

約数ペア:

[(1, 21553560), (2, 10776780), (3, 7184520), (4, 5388390), (5, 4310712), (6, 3592260), (7, 3079080), (8, 2694195), (9, 2394840), (10, 2155356), (12, 1796130), (14, 1539540), (15, 1436904), (18, 1197420), (20, 1077678), (21, 1026360), (24, 898065), (27, 798280), (28, 769770), (30, 718452), (35, 615816), (36, 598710), (40, 538839), (42, 513180), (45, 478968), (54, 399140), (56, 384885), (60, 359226), (63, 342120), (70, 307908), (72, 299355), (84, 256590), (90, 239484), (105, 205272), (108, 199570), (120, 179613), (126, 171060), (135, 159656), (140, 153954), (168, 128295), (180, 119742), (189, 114040), (210, 102636), (216, 99785), (252, 85530), (270, 79828), (280, 76977), (315, 68424), (360, 59871), (378, 57020), (420, 51318), (504, 42765), (540, 39914), (630, 34212), (756, 28510), (840, 25659), (945, 22808), (1080, 19957), (1260, 17106), (1512, 14255), (1890, 11404), (2520, 8553), (2851, 7560), (3780, 5702)]