21416760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1451}}^1$

素因数の和:1509

約数の個数: 96

約数和(自身を含む): 71351280

約数和(自身を除く): 49934520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 41, 45, 60, 72, 82, 90, 120, 123, 164, 180, 205, 246, 328, 360, 369, 410, 492, 615, 738, 820, 984, 1230, 1451, 1476, 1640, 1845, 2460, 2902, 2952, 3690, 4353, 4920, 5804, 7255, 7380, 8706, 11608, 13059, 14510, 14760, 17412, 21765, 26118, 29020, 34824, 43530, 52236, 58040, 59491, 65295, 87060, 104472, 118982, 130590, 174120, 178473, 237964, 261180, 297455, 356946, 475928, 522360, 535419, 594910, 713892, 892365, 1070838, 1189820, 1427784, 1784730, 2141676, 2379640, 2677095, 3569460, 4283352, 5354190, 7138920, 10708380, 21416760]

約数ペア:

[(1, 21416760), (2, 10708380), (3, 7138920), (4, 5354190), (5, 4283352), (6, 3569460), (8, 2677095), (9, 2379640), (10, 2141676), (12, 1784730), (15, 1427784), (18, 1189820), (20, 1070838), (24, 892365), (30, 713892), (36, 594910), (40, 535419), (41, 522360), (45, 475928), (60, 356946), (72, 297455), (82, 261180), (90, 237964), (120, 178473), (123, 174120), (164, 130590), (180, 118982), (205, 104472), (246, 87060), (328, 65295), (360, 59491), (369, 58040), (410, 52236), (492, 43530), (615, 34824), (738, 29020), (820, 26118), (984, 21765), (1230, 17412), (1451, 14760), (1476, 14510), (1640, 13059), (1845, 11608), (2460, 8706), (2902, 7380), (2952, 7255), (3690, 5804), (4353, 4920)]