18311358

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 42094080

約数和(自身を除く): 23782722

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 59, 69, 78, 118, 138, 173, 177, 299, 346, 354, 519, 598, 767, 897, 1038, 1357, 1534, 1794, 2249, 2301, 2714, 3979, 4071, 4498, 4602, 6747, 7958, 8142, 10207, 11937, 13494, 17641, 20414, 23874, 30621, 35282, 51727, 52923, 61242, 103454, 105846, 132691, 155181, 234761, 265382, 310362, 398073, 469522, 704283, 796146, 1408566, 3051893, 6103786, 9155679, 18311358]

約数ペア:

[(1, 18311358), (2, 9155679), (3, 6103786), (6, 3051893), (13, 1408566), (23, 796146), (26, 704283), (39, 469522), (46, 398073), (59, 310362), (69, 265382), (78, 234761), (118, 155181), (138, 132691), (173, 105846), (177, 103454), (299, 61242), (346, 52923), (354, 51727), (519, 35282), (598, 30621), (767, 23874), (897, 20414), (1038, 17641), (1357, 13494), (1534, 11937), (1794, 10207), (2249, 8142), (2301, 7958), (2714, 6747), (3979, 4602), (4071, 4498)]