21851775

素因数分解:

$3^6\times 5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1$

素因数の和:148

約数の個数: 84

約数和(自身を含む): 44725560

約数和(自身を除く): 22873785

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 81, 99, 109, 135, 165, 225, 243, 275, 297, 327, 405, 495, 545, 675, 729, 825, 891, 981, 1199, 1215, 1485, 1635, 2025, 2475, 2673, 2725, 2943, 3597, 3645, 4455, 4905, 5995, 6075, 7425, 8019, 8175, 8829, 10791, 13365, 14715, 17985, 18225, 22275, 24525, 26487, 29975, 32373, 40095, 44145, 53955, 66825, 73575, 79461, 89925, 97119, 132435, 161865, 200475, 220725, 269775, 291357, 397305, 485595, 662175, 809325, 874071, 1456785, 1986525, 2427975, 4370355, 7283925, 21851775]

約数ペア:

[(1, 21851775), (3, 7283925), (5, 4370355), (9, 2427975), (11, 1986525), (15, 1456785), (25, 874071), (27, 809325), (33, 662175), (45, 485595), (55, 397305), (75, 291357), (81, 269775), (99, 220725), (109, 200475), (135, 161865), (165, 132435), (225, 97119), (243, 89925), (275, 79461), (297, 73575), (327, 66825), (405, 53955), (495, 44145), (545, 40095), (675, 32373), (729, 29975), (825, 26487), (891, 24525), (981, 22275), (1199, 18225), (1215, 17985), (1485, 14715), (1635, 13365), (2025, 10791), (2475, 8829), (2673, 8175), (2725, 8019), (2943, 7425), (3597, 6075), (3645, 5995), (4455, 4905)]