18214875

素因数分解:

$3^4\times 5^3\times 7^1\times {\mathrm{257}}^1$

素因数の和:291

約数の個数: 80

約数和(自身を含む): 38960064

約数和(自身を除く): 20745189

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 105, 125, 135, 175, 189, 225, 257, 315, 375, 405, 525, 567, 675, 771, 875, 945, 1125, 1285, 1575, 1799, 2025, 2313, 2625, 2835, 3375, 3855, 4725, 5397, 6425, 6939, 7875, 8995, 10125, 11565, 14175, 16191, 19275, 20817, 23625, 26985, 32125, 34695, 44975, 48573, 57825, 70875, 80955, 96375, 104085, 134925, 145719, 173475, 224875, 242865, 289125, 404775, 520425, 674625, 728595, 867375, 1214325, 2023875, 2602125, 3642975, 6071625, 18214875]

約数ペア:

[(1, 18214875), (3, 6071625), (5, 3642975), (7, 2602125), (9, 2023875), (15, 1214325), (21, 867375), (25, 728595), (27, 674625), (35, 520425), (45, 404775), (63, 289125), (75, 242865), (81, 224875), (105, 173475), (125, 145719), (135, 134925), (175, 104085), (189, 96375), (225, 80955), (257, 70875), (315, 57825), (375, 48573), (405, 44975), (525, 34695), (567, 32125), (675, 26985), (771, 23625), (875, 20817), (945, 19275), (1125, 16191), (1285, 14175), (1575, 11565), (1799, 10125), (2025, 8995), (2313, 7875), (2625, 6939), (2835, 6425), (3375, 5397), (3855, 4725)]