21652818

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1$

素因数の和:623

約数の個数: 64

約数和(自身を含む): 51425280

約数和(自身を除く): 29772462

約数列:

[1, 2, 3, 6, 11, 19, 22, 31, 33, 38, 57, 62, 66, 93, 114, 186, 209, 341, 418, 557, 589, 627, 682, 1023, 1114, 1178, 1254, 1671, 1767, 2046, 3342, 3534, 6127, 6479, 10583, 12254, 12958, 17267, 18381, 19437, 21166, 31749, 34534, 36762, 38874, 51801, 63498, 103602, 116413, 189937, 232826, 328073, 349239, 379874, 569811, 656146, 698478, 984219, 1139622, 1968438, 3608803, 7217606, 10826409, 21652818]

約数ペア:

[(1, 21652818), (2, 10826409), (3, 7217606), (6, 3608803), (11, 1968438), (19, 1139622), (22, 984219), (31, 698478), (33, 656146), (38, 569811), (57, 379874), (62, 349239), (66, 328073), (93, 232826), (114, 189937), (186, 116413), (209, 103602), (341, 63498), (418, 51801), (557, 38874), (589, 36762), (627, 34534), (682, 31749), (1023, 21166), (1114, 19437), (1178, 18381), (1254, 17267), (1671, 12958), (1767, 12254), (2046, 10583), (3342, 6479), (3534, 6127)]