18938392

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 41277600

約数和(自身を除く): 22339208

約数列:

[1, 2, 4, 8, 11, 22, 29, 41, 44, 58, 82, 88, 116, 164, 181, 232, 319, 328, 362, 451, 638, 724, 902, 1189, 1276, 1448, 1804, 1991, 2378, 2552, 3608, 3982, 4756, 5249, 7421, 7964, 9512, 10498, 13079, 14842, 15928, 20996, 26158, 29684, 41992, 52316, 57739, 59368, 81631, 104632, 115478, 163262, 215209, 230956, 326524, 430418, 461912, 653048, 860836, 1721672, 2367299, 4734598, 9469196, 18938392]

約数ペア:

[(1, 18938392), (2, 9469196), (4, 4734598), (8, 2367299), (11, 1721672), (22, 860836), (29, 653048), (41, 461912), (44, 430418), (58, 326524), (82, 230956), (88, 215209), (116, 163262), (164, 115478), (181, 104632), (232, 81631), (319, 59368), (328, 57739), (362, 52316), (451, 41992), (638, 29684), (724, 26158), (902, 20996), (1189, 15928), (1276, 14842), (1448, 13079), (1804, 10498), (1991, 9512), (2378, 7964), (2552, 7421), (3608, 5249), (3982, 4756)]