21044296

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 49150080

約数和(自身を除く): 28105784

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 137, 182, 211, 274, 364, 422, 548, 728, 844, 959, 1096, 1477, 1688, 1781, 1918, 2743, 2954, 3562, 3836, 5486, 5908, 7124, 7672, 10972, 11816, 12467, 14248, 19201, 21944, 24934, 28907, 38402, 49868, 57814, 76804, 99736, 115628, 153608, 202349, 231256, 375791, 404698, 751582, 809396, 1503164, 1618792, 2630537, 3006328, 5261074, 10522148, 21044296]

約数ペア:

[(1, 21044296), (2, 10522148), (4, 5261074), (7, 3006328), (8, 2630537), (13, 1618792), (14, 1503164), (26, 809396), (28, 751582), (52, 404698), (56, 375791), (91, 231256), (104, 202349), (137, 153608), (182, 115628), (211, 99736), (274, 76804), (364, 57814), (422, 49868), (548, 38402), (728, 28907), (844, 24934), (959, 21944), (1096, 19201), (1477, 14248), (1688, 12467), (1781, 11816), (1918, 10972), (2743, 7672), (2954, 7124), (3562, 5908), (3836, 5486)]