21191352

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:373

約数の個数: 128

約数和(自身を含む): 67522560

約数和(自身を除く): 46331208

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 31, 39, 42, 52, 56, 62, 78, 84, 91, 93, 104, 124, 156, 168, 182, 186, 217, 248, 273, 312, 313, 364, 372, 403, 434, 546, 626, 651, 728, 744, 806, 868, 939, 1092, 1209, 1252, 1302, 1612, 1736, 1878, 2184, 2191, 2418, 2504, 2604, 2821, 3224, 3756, 4069, 4382, 4836, 5208, 5642, 6573, 7512, 8138, 8463, 8764, 9672, 9703, 11284, 12207, 13146, 16276, 16926, 17528, 19406, 22568, 24414, 26292, 28483, 29109, 32552, 33852, 38812, 48828, 52584, 56966, 58218, 67704, 67921, 77624, 85449, 97656, 113932, 116436, 126139, 135842, 170898, 203763, 227864, 232872, 252278, 271684, 341796, 378417, 407526, 504556, 543368, 683592, 756834, 815052, 882973, 1009112, 1513668, 1630104, 1765946, 2648919, 3027336, 3531892, 5297838, 7063784, 10595676, 21191352]

約数ペア:

[(1, 21191352), (2, 10595676), (3, 7063784), (4, 5297838), (6, 3531892), (7, 3027336), (8, 2648919), (12, 1765946), (13, 1630104), (14, 1513668), (21, 1009112), (24, 882973), (26, 815052), (28, 756834), (31, 683592), (39, 543368), (42, 504556), (52, 407526), (56, 378417), (62, 341796), (78, 271684), (84, 252278), (91, 232872), (93, 227864), (104, 203763), (124, 170898), (156, 135842), (168, 126139), (182, 116436), (186, 113932), (217, 97656), (248, 85449), (273, 77624), (312, 67921), (313, 67704), (364, 58218), (372, 56966), (403, 52584), (434, 48828), (546, 38812), (626, 33852), (651, 32552), (728, 29109), (744, 28483), (806, 26292), (868, 24414), (939, 22568), (1092, 19406), (1209, 17528), (1252, 16926), (1302, 16276), (1612, 13146), (1736, 12207), (1878, 11284), (2184, 9703), (2191, 9672), (2418, 8764), (2504, 8463), (2604, 8138), (2821, 7512), (3224, 6573), (3756, 5642), (4069, 5208), (4382, 4836)]