21459236

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 20453404

約数列:

[1, 2, 4, 17, 34, 41, 43, 68, 82, 86, 164, 172, 179, 358, 697, 716, 731, 1394, 1462, 1763, 2788, 2924, 3043, 3526, 6086, 7052, 7339, 7697, 12172, 14678, 15394, 29356, 29971, 30788, 59942, 119884, 124763, 130849, 249526, 261698, 315577, 499052, 523396, 631154, 1262308, 5364809, 10729618, 21459236]

約数ペア:

[(1, 21459236), (2, 10729618), (4, 5364809), (17, 1262308), (34, 631154), (41, 523396), (43, 499052), (68, 315577), (82, 261698), (86, 249526), (164, 130849), (172, 124763), (179, 119884), (358, 59942), (697, 30788), (716, 29971), (731, 29356), (1394, 15394), (1462, 14678), (1763, 12172), (2788, 7697), (2924, 7339), (3043, 7052), (3526, 6086)]