21186648

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:477

約数の個数: 96

約数和(自身を含む): 66293760

約数和(自身を除く): 45107112

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 127, 168, 252, 254, 331, 381, 504, 508, 662, 762, 889, 993, 1016, 1143, 1324, 1524, 1778, 1986, 2286, 2317, 2648, 2667, 2979, 3048, 3556, 3972, 4572, 4634, 5334, 5958, 6951, 7112, 7944, 8001, 9144, 9268, 10668, 11916, 13902, 16002, 18536, 20853, 21336, 23832, 27804, 32004, 41706, 42037, 55608, 64008, 83412, 84074, 126111, 166824, 168148, 252222, 294259, 336296, 378333, 504444, 588518, 756666, 882777, 1008888, 1177036, 1513332, 1765554, 2354072, 2648331, 3026664, 3531108, 5296662, 7062216, 10593324, 21186648]

約数ペア:

[(1, 21186648), (2, 10593324), (3, 7062216), (4, 5296662), (6, 3531108), (7, 3026664), (8, 2648331), (9, 2354072), (12, 1765554), (14, 1513332), (18, 1177036), (21, 1008888), (24, 882777), (28, 756666), (36, 588518), (42, 504444), (56, 378333), (63, 336296), (72, 294259), (84, 252222), (126, 168148), (127, 166824), (168, 126111), (252, 84074), (254, 83412), (331, 64008), (381, 55608), (504, 42037), (508, 41706), (662, 32004), (762, 27804), (889, 23832), (993, 21336), (1016, 20853), (1143, 18536), (1324, 16002), (1524, 13902), (1778, 11916), (1986, 10668), (2286, 9268), (2317, 9144), (2648, 8001), (2667, 7944), (2979, 7112), (3048, 6951), (3556, 5958), (3972, 5334), (4572, 4634)]