21004452

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4903}}^1$

素因数の和:4937

約数の個数: 72

約数和(自身を含む): 64262016

約数和(自身を除く): 43257564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 63, 68, 84, 102, 119, 126, 153, 204, 238, 252, 306, 357, 476, 612, 714, 1071, 1428, 2142, 4284, 4903, 9806, 14709, 19612, 29418, 34321, 44127, 58836, 68642, 83351, 88254, 102963, 137284, 166702, 176508, 205926, 250053, 308889, 333404, 411852, 500106, 583457, 617778, 750159, 1000212, 1166914, 1235556, 1500318, 1750371, 2333828, 3000636, 3500742, 5251113, 7001484, 10502226, 21004452]

約数ペア:

[(1, 21004452), (2, 10502226), (3, 7001484), (4, 5251113), (6, 3500742), (7, 3000636), (9, 2333828), (12, 1750371), (14, 1500318), (17, 1235556), (18, 1166914), (21, 1000212), (28, 750159), (34, 617778), (36, 583457), (42, 500106), (51, 411852), (63, 333404), (68, 308889), (84, 250053), (102, 205926), (119, 176508), (126, 166702), (153, 137284), (204, 102963), (238, 88254), (252, 83351), (306, 68642), (357, 58836), (476, 44127), (612, 34321), (714, 29418), (1071, 19612), (1428, 14709), (2142, 9806), (4284, 4903)]