21558498

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:299

約数の個数: 64

約数和(自身を含む): 49496832

約数和(自身を除く): 27938334

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 61, 69, 78, 122, 138, 183, 197, 299, 366, 394, 591, 598, 793, 897, 1182, 1403, 1586, 1794, 2379, 2561, 2806, 4209, 4531, 4758, 5122, 7683, 8418, 9062, 12017, 13593, 15366, 18239, 24034, 27186, 36051, 36478, 54717, 58903, 72102, 109434, 117806, 156221, 176709, 276391, 312442, 353418, 468663, 552782, 829173, 937326, 1658346, 3593083, 7186166, 10779249, 21558498]

約数ペア:

[(1, 21558498), (2, 10779249), (3, 7186166), (6, 3593083), (13, 1658346), (23, 937326), (26, 829173), (39, 552782), (46, 468663), (61, 353418), (69, 312442), (78, 276391), (122, 176709), (138, 156221), (183, 117806), (197, 109434), (299, 72102), (366, 58903), (394, 54717), (591, 36478), (598, 36051), (793, 27186), (897, 24034), (1182, 18239), (1403, 15366), (1586, 13593), (1794, 12017), (2379, 9062), (2561, 8418), (2806, 7683), (4209, 5122), (4531, 4758)]