21143576

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1171}}^1$

素因数の和:1275

約数の個数: 32

約数和(自身を含む): 41418480

約数和(自身を除く): 20274904

約数列:

[1, 2, 4, 8, 37, 61, 74, 122, 148, 244, 296, 488, 1171, 2257, 2342, 4514, 4684, 9028, 9368, 18056, 43327, 71431, 86654, 142862, 173308, 285724, 346616, 571448, 2642947, 5285894, 10571788, 21143576]

約数ペア:

[(1, 21143576), (2, 10571788), (4, 5285894), (8, 2642947), (37, 571448), (61, 346616), (74, 285724), (122, 173308), (148, 142862), (244, 86654), (296, 71431), (488, 43327), (1171, 18056), (2257, 9368), (2342, 9028), (4514, 4684)]