21233640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 68544000

約数和(自身を除く): 47310360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 67, 76, 95, 114, 120, 134, 139, 152, 190, 201, 228, 268, 278, 285, 335, 380, 402, 417, 456, 536, 556, 570, 670, 695, 760, 804, 834, 1005, 1112, 1140, 1273, 1340, 1390, 1608, 1668, 2010, 2085, 2280, 2546, 2641, 2680, 2780, 3336, 3819, 4020, 4170, 5092, 5282, 5560, 6365, 7638, 7923, 8040, 8340, 9313, 10184, 10564, 12730, 13205, 15276, 15846, 16680, 18626, 19095, 21128, 25460, 26410, 27939, 30552, 31692, 37252, 38190, 39615, 46565, 50920, 52820, 55878, 63384, 74504, 76380, 79230, 93130, 105640, 111756, 139695, 152760, 158460, 176947, 186260, 223512, 279390, 316920, 353894, 372520, 530841, 558780, 707788, 884735, 1061682, 1117560, 1415576, 1769470, 2123364, 2654205, 3538940, 4246728, 5308410, 7077880, 10616820, 21233640]

約数ペア:

[(1, 21233640), (2, 10616820), (3, 7077880), (4, 5308410), (5, 4246728), (6, 3538940), (8, 2654205), (10, 2123364), (12, 1769470), (15, 1415576), (19, 1117560), (20, 1061682), (24, 884735), (30, 707788), (38, 558780), (40, 530841), (57, 372520), (60, 353894), (67, 316920), (76, 279390), (95, 223512), (114, 186260), (120, 176947), (134, 158460), (139, 152760), (152, 139695), (190, 111756), (201, 105640), (228, 93130), (268, 79230), (278, 76380), (285, 74504), (335, 63384), (380, 55878), (402, 52820), (417, 50920), (456, 46565), (536, 39615), (556, 38190), (570, 37252), (670, 31692), (695, 30552), (760, 27939), (804, 26410), (834, 25460), (1005, 21128), (1112, 19095), (1140, 18626), (1273, 16680), (1340, 15846), (1390, 15276), (1608, 13205), (1668, 12730), (2010, 10564), (2085, 10184), (2280, 9313), (2546, 8340), (2641, 8040), (2680, 7923), (2780, 7638), (3336, 6365), (3819, 5560), (4020, 5282), (4170, 5092)]