21851688

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 57153600

約数和(自身を除く): 35301912

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 53, 82, 106, 123, 159, 164, 212, 246, 318, 328, 419, 424, 492, 636, 838, 984, 1257, 1272, 1676, 2173, 2514, 3352, 4346, 5028, 6519, 8692, 10056, 13038, 17179, 17384, 22207, 26076, 34358, 44414, 51537, 52152, 66621, 68716, 88828, 103074, 133242, 137432, 177656, 206148, 266484, 412296, 532968, 910487, 1820974, 2731461, 3641948, 5462922, 7283896, 10925844, 21851688]

約数ペア:

[(1, 21851688), (2, 10925844), (3, 7283896), (4, 5462922), (6, 3641948), (8, 2731461), (12, 1820974), (24, 910487), (41, 532968), (53, 412296), (82, 266484), (106, 206148), (123, 177656), (159, 137432), (164, 133242), (212, 103074), (246, 88828), (318, 68716), (328, 66621), (419, 52152), (424, 51537), (492, 44414), (636, 34358), (838, 26076), (984, 22207), (1257, 17384), (1272, 17179), (1676, 13038), (2173, 10056), (2514, 8692), (3352, 6519), (4346, 5028)]