21144375

素因数分解:

$3^3\times 5^4\times 7^1\times {\mathrm{179}}^1$

素因数の和:215

約数の個数: 80

約数和(自身を含む): 44985600

約数和(自身を除く): 23841225

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 125, 135, 175, 179, 189, 225, 315, 375, 525, 537, 625, 675, 875, 895, 945, 1125, 1253, 1575, 1611, 1875, 2625, 2685, 3375, 3759, 4375, 4475, 4725, 4833, 5625, 6265, 7875, 8055, 11277, 13125, 13425, 16875, 18795, 22375, 23625, 24165, 31325, 33831, 39375, 40275, 56385, 67125, 93975, 111875, 118125, 120825, 156625, 169155, 201375, 281925, 335625, 469875, 604125, 783125, 845775, 1006875, 1409625, 2349375, 3020625, 4228875, 7048125, 21144375]

約数ペア:

[(1, 21144375), (3, 7048125), (5, 4228875), (7, 3020625), (9, 2349375), (15, 1409625), (21, 1006875), (25, 845775), (27, 783125), (35, 604125), (45, 469875), (63, 335625), (75, 281925), (105, 201375), (125, 169155), (135, 156625), (175, 120825), (179, 118125), (189, 111875), (225, 93975), (315, 67125), (375, 56385), (525, 40275), (537, 39375), (625, 33831), (675, 31325), (875, 24165), (895, 23625), (945, 22375), (1125, 18795), (1253, 16875), (1575, 13425), (1611, 13125), (1875, 11277), (2625, 8055), (2685, 7875), (3375, 6265), (3759, 5625), (4375, 4833), (4475, 4725)]