21490652

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 41640480

約数和(自身を除く): 20149828

約数列:

[1, 2, 4, 17, 34, 53, 67, 68, 89, 106, 134, 178, 212, 268, 356, 901, 1139, 1513, 1802, 2278, 3026, 3551, 3604, 4556, 4717, 5963, 6052, 7102, 9434, 11926, 14204, 18868, 23852, 60367, 80189, 101371, 120734, 160378, 202742, 241468, 316039, 320756, 405484, 632078, 1264156, 5372663, 10745326, 21490652]

約数ペア:

[(1, 21490652), (2, 10745326), (4, 5372663), (17, 1264156), (34, 632078), (53, 405484), (67, 320756), (68, 316039), (89, 241468), (106, 202742), (134, 160378), (178, 120734), (212, 101371), (268, 80189), (356, 60367), (901, 23852), (1139, 18868), (1513, 14204), (1802, 11926), (2278, 9434), (3026, 7102), (3551, 6052), (3604, 5963), (4556, 4717)]