21877912

素因数分解:

$2^3\times 7^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:118

約数の個数: 80

約数和(自身を含む): 51426360

約数和(自身を除く): 29548448

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 67, 68, 98, 119, 134, 136, 196, 238, 268, 343, 392, 469, 476, 536, 686, 833, 938, 952, 1139, 1372, 1666, 1876, 2278, 2401, 2744, 3283, 3332, 3752, 4556, 4802, 5831, 6566, 6664, 7973, 9112, 9604, 11662, 13132, 15946, 19208, 22981, 23324, 26264, 31892, 40817, 45962, 46648, 55811, 63784, 81634, 91924, 111622, 160867, 163268, 183848, 223244, 321734, 326536, 390677, 446488, 643468, 781354, 1286936, 1562708, 2734739, 3125416, 5469478, 10938956, 21877912]

約数ペア:

[(1, 21877912), (2, 10938956), (4, 5469478), (7, 3125416), (8, 2734739), (14, 1562708), (17, 1286936), (28, 781354), (34, 643468), (49, 446488), (56, 390677), (67, 326536), (68, 321734), (98, 223244), (119, 183848), (134, 163268), (136, 160867), (196, 111622), (238, 91924), (268, 81634), (343, 63784), (392, 55811), (469, 46648), (476, 45962), (536, 40817), (686, 31892), (833, 26264), (938, 23324), (952, 22981), (1139, 19208), (1372, 15946), (1666, 13132), (1876, 11662), (2278, 9604), (2401, 9112), (2744, 7973), (3283, 6664), (3332, 6566), (3752, 5831), (4556, 4802)]