21276996

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 57915648

約数和(自身を除く): 36638652

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 71, 78, 102, 113, 142, 156, 204, 213, 221, 226, 284, 339, 426, 442, 452, 663, 678, 852, 884, 923, 1207, 1326, 1356, 1469, 1846, 1921, 2414, 2652, 2769, 2938, 3621, 3692, 3842, 4407, 4828, 5538, 5763, 5876, 7242, 7684, 8023, 8814, 11076, 11526, 14484, 15691, 16046, 17628, 23052, 24069, 24973, 31382, 32092, 47073, 48138, 49946, 62764, 74919, 94146, 96276, 99892, 104299, 136391, 149838, 188292, 208598, 272782, 299676, 312897, 409173, 417196, 545564, 625794, 818346, 1251588, 1636692, 1773083, 3546166, 5319249, 7092332, 10638498, 21276996]

約数ペア:

[(1, 21276996), (2, 10638498), (3, 7092332), (4, 5319249), (6, 3546166), (12, 1773083), (13, 1636692), (17, 1251588), (26, 818346), (34, 625794), (39, 545564), (51, 417196), (52, 409173), (68, 312897), (71, 299676), (78, 272782), (102, 208598), (113, 188292), (142, 149838), (156, 136391), (204, 104299), (213, 99892), (221, 96276), (226, 94146), (284, 74919), (339, 62764), (426, 49946), (442, 48138), (452, 47073), (663, 32092), (678, 31382), (852, 24973), (884, 24069), (923, 23052), (1207, 17628), (1326, 16046), (1356, 15691), (1469, 14484), (1846, 11526), (1921, 11076), (2414, 8814), (2652, 8023), (2769, 7684), (2938, 7242), (3621, 5876), (3692, 5763), (3842, 5538), (4407, 4828)]