21500388

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6563}}^1$

素因数の和:6593

約数の個数: 72

約数和(自身を含む): 66900288

約数和(自身を除く): 45399900

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 6563, 13126, 19689, 26252, 39378, 45941, 59067, 78756, 85319, 91882, 118134, 137823, 170638, 183764, 236268, 255957, 275646, 341276, 413469, 511914, 551292, 597233, 767871, 826938, 1023828, 1194466, 1535742, 1653876, 1791699, 2388932, 3071484, 3583398, 5375097, 7166796, 10750194, 21500388]

約数ペア:

[(1, 21500388), (2, 10750194), (3, 7166796), (4, 5375097), (6, 3583398), (7, 3071484), (9, 2388932), (12, 1791699), (13, 1653876), (14, 1535742), (18, 1194466), (21, 1023828), (26, 826938), (28, 767871), (36, 597233), (39, 551292), (42, 511914), (52, 413469), (63, 341276), (78, 275646), (84, 255957), (91, 236268), (117, 183764), (126, 170638), (156, 137823), (182, 118134), (234, 91882), (252, 85319), (273, 78756), (364, 59067), (468, 45941), (546, 39378), (819, 26252), (1092, 19689), (1638, 13126), (3276, 6563)]