21528270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{953}}^1$

素因数の和:1217

約数の個数: 48

約数和(自身を含む): 56255472

約数和(自身を除く): 34727202

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 251, 502, 753, 953, 1255, 1506, 1906, 2259, 2510, 2859, 3765, 4518, 4765, 5718, 7530, 8577, 9530, 11295, 14295, 17154, 22590, 28590, 42885, 85770, 239203, 478406, 717609, 1196015, 1435218, 2152827, 2392030, 3588045, 4305654, 7176090, 10764135, 21528270]

約数ペア:

[(1, 21528270), (2, 10764135), (3, 7176090), (5, 4305654), (6, 3588045), (9, 2392030), (10, 2152827), (15, 1435218), (18, 1196015), (30, 717609), (45, 478406), (90, 239203), (251, 85770), (502, 42885), (753, 28590), (953, 22590), (1255, 17154), (1506, 14295), (1906, 11295), (2259, 9530), (2510, 8577), (2859, 7530), (3765, 5718), (4518, 4765)]