21257532

素因数分解:

$2^2\times 3^3\times {\mathrm{149}}^1\times {\mathrm{1321}}^1$

素因数の和:1483

約数の個数: 48

約数和(自身を含む): 55524000

約数和(自身を除く): 34266468

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 149, 298, 447, 596, 894, 1321, 1341, 1788, 2642, 2682, 3963, 4023, 5284, 5364, 7926, 8046, 11889, 15852, 16092, 23778, 35667, 47556, 71334, 142668, 196829, 393658, 590487, 787316, 1180974, 1771461, 2361948, 3542922, 5314383, 7085844, 10628766, 21257532]

約数ペア:

[(1, 21257532), (2, 10628766), (3, 7085844), (4, 5314383), (6, 3542922), (9, 2361948), (12, 1771461), (18, 1180974), (27, 787316), (36, 590487), (54, 393658), (108, 196829), (149, 142668), (298, 71334), (447, 47556), (596, 35667), (894, 23778), (1321, 16092), (1341, 15852), (1788, 11889), (2642, 8046), (2682, 7926), (3963, 5364), (4023, 5284)]