21490956

素因数分解:

$2^2\times 3^2\times {\mathrm{223}}^1\times {\mathrm{2677}}^1$

素因数の和:2910

約数の個数: 36

約数和(自身を含む): 54588352

約数和(自身を除く): 33097396

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 223, 446, 669, 892, 1338, 2007, 2676, 2677, 4014, 5354, 8028, 8031, 10708, 16062, 24093, 32124, 48186, 96372, 596971, 1193942, 1790913, 2387884, 3581826, 5372739, 7163652, 10745478, 21490956]

約数ペア:

[(1, 21490956), (2, 10745478), (3, 7163652), (4, 5372739), (6, 3581826), (9, 2387884), (12, 1790913), (18, 1193942), (36, 596971), (223, 96372), (446, 48186), (669, 32124), (892, 24093), (1338, 16062), (2007, 10708), (2676, 8031), (2677, 8028), (4014, 5354)]