21394278

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1667}}^1$

素因数の和:1729

約数の個数: 48

約数和(自身を含む): 49959936

約数和(自身を除く): 28565658

約数列:

[1, 2, 3, 6, 9, 18, 23, 31, 46, 62, 69, 93, 138, 186, 207, 279, 414, 558, 713, 1426, 1667, 2139, 3334, 4278, 5001, 6417, 10002, 12834, 15003, 30006, 38341, 51677, 76682, 103354, 115023, 155031, 230046, 310062, 345069, 465093, 690138, 930186, 1188571, 2377142, 3565713, 7131426, 10697139, 21394278]

約数ペア:

[(1, 21394278), (2, 10697139), (3, 7131426), (6, 3565713), (9, 2377142), (18, 1188571), (23, 930186), (31, 690138), (46, 465093), (62, 345069), (69, 310062), (93, 230046), (138, 155031), (186, 115023), (207, 103354), (279, 76682), (414, 51677), (558, 38341), (713, 30006), (1426, 15003), (1667, 12834), (2139, 10002), (3334, 6417), (4278, 5001)]