21854730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 54286848

約数和(自身を除く): 32432118

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 67, 83, 131, 134, 166, 201, 249, 262, 335, 393, 402, 415, 498, 655, 670, 786, 830, 1005, 1245, 1310, 1965, 2010, 2490, 3930, 5561, 8777, 10873, 11122, 16683, 17554, 21746, 26331, 27805, 32619, 33366, 43885, 52662, 54365, 55610, 65238, 83415, 87770, 108730, 131655, 163095, 166830, 263310, 326190, 728491, 1456982, 2185473, 3642455, 4370946, 7284910, 10927365, 21854730]

約数ペア:

[(1, 21854730), (2, 10927365), (3, 7284910), (5, 4370946), (6, 3642455), (10, 2185473), (15, 1456982), (30, 728491), (67, 326190), (83, 263310), (131, 166830), (134, 163095), (166, 131655), (201, 108730), (249, 87770), (262, 83415), (335, 65238), (393, 55610), (402, 54365), (415, 52662), (498, 43885), (655, 33366), (670, 32619), (786, 27805), (830, 26331), (1005, 21746), (1245, 17554), (1310, 16683), (1965, 11122), (2010, 10873), (2490, 8777), (3930, 5561)]