217778895

素因数分解:

$3^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{6427}}^1$

素因数の和:6692

約数の個数: 32

約数和(自身を含む): 388765440

約数和(自身を除く): 170986545

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 251, 753, 1255, 2259, 3765, 6427, 6777, 11295, 19281, 32135, 33885, 57843, 96405, 173529, 289215, 867645, 1613177, 4839531, 8065885, 14518593, 24197655, 43555779, 72592965, 217778895]

約数ペア:

[(1, 217778895), (3, 72592965), (5, 43555779), (9, 24197655), (15, 14518593), (27, 8065885), (45, 4839531), (135, 1613177), (251, 867645), (753, 289215), (1255, 173529), (2259, 96405), (3765, 57843), (6427, 33885), (6777, 32135), (11295, 19281)]