217423305

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4723}}^1$

素因数の和:4779

約数の個数: 64

約数和(自身を含む): 435363840

約数和(自身を除く): 217940535

約数列:

[1, 3, 5, 9, 11, 15, 27, 31, 33, 45, 55, 93, 99, 135, 155, 165, 279, 297, 341, 465, 495, 837, 1023, 1395, 1485, 1705, 3069, 4185, 4723, 5115, 9207, 14169, 15345, 23615, 42507, 46035, 51953, 70845, 127521, 146413, 155859, 212535, 259765, 439239, 467577, 637605, 732065, 779295, 1317717, 1402731, 1610543, 2196195, 2337885, 3953151, 4831629, 6588585, 7013655, 8052715, 14494887, 19765755, 24158145, 43484661, 72474435, 217423305]

約数ペア:

[(1, 217423305), (3, 72474435), (5, 43484661), (9, 24158145), (11, 19765755), (15, 14494887), (27, 8052715), (31, 7013655), (33, 6588585), (45, 4831629), (55, 3953151), (93, 2337885), (99, 2196195), (135, 1610543), (155, 1402731), (165, 1317717), (279, 779295), (297, 732065), (341, 637605), (465, 467577), (495, 439239), (837, 259765), (1023, 212535), (1395, 155859), (1485, 146413), (1705, 127521), (3069, 70845), (4185, 51953), (4723, 46035), (5115, 42507), (9207, 23615), (14169, 15345)]