21819588

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{617}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 58418304

約数和(自身を除く): 36598716

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 421, 617, 842, 1234, 1263, 1684, 1851, 2468, 2526, 2947, 3702, 4319, 5052, 5894, 7404, 8638, 8841, 11788, 12957, 17276, 17682, 25914, 35364, 51828, 259757, 519514, 779271, 1039028, 1558542, 1818299, 3117084, 3636598, 5454897, 7273196, 10909794, 21819588]

約数ペア:

[(1, 21819588), (2, 10909794), (3, 7273196), (4, 5454897), (6, 3636598), (7, 3117084), (12, 1818299), (14, 1558542), (21, 1039028), (28, 779271), (42, 519514), (84, 259757), (421, 51828), (617, 35364), (842, 25914), (1234, 17682), (1263, 17276), (1684, 12957), (1851, 11788), (2468, 8841), (2526, 8638), (2947, 7404), (3702, 5894), (4319, 5052)]