21279144

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{773}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 56471040

約数和(自身を除く): 35191896

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 37, 62, 74, 93, 111, 124, 148, 186, 222, 248, 296, 372, 444, 744, 773, 888, 1147, 1546, 2294, 2319, 3092, 3441, 4588, 4638, 6184, 6882, 9176, 9276, 13764, 18552, 23963, 27528, 28601, 47926, 57202, 71889, 85803, 95852, 114404, 143778, 171606, 191704, 228808, 287556, 343212, 575112, 686424, 886631, 1773262, 2659893, 3546524, 5319786, 7093048, 10639572, 21279144]

約数ペア:

[(1, 21279144), (2, 10639572), (3, 7093048), (4, 5319786), (6, 3546524), (8, 2659893), (12, 1773262), (24, 886631), (31, 686424), (37, 575112), (62, 343212), (74, 287556), (93, 228808), (111, 191704), (124, 171606), (148, 143778), (186, 114404), (222, 95852), (248, 85803), (296, 71889), (372, 57202), (444, 47926), (744, 28601), (773, 27528), (888, 23963), (1147, 18552), (1546, 13764), (2294, 9276), (2319, 9176), (3092, 6882), (3441, 6184), (4588, 4638)]