18615688

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^2\times {\mathrm{281}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 44123130

約数和(自身を除く): 25507442

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 169, 182, 196, 281, 338, 364, 392, 562, 637, 676, 728, 1124, 1183, 1274, 1352, 1967, 2248, 2366, 2548, 3653, 3934, 4732, 5096, 7306, 7868, 8281, 9464, 13769, 14612, 15736, 16562, 25571, 27538, 29224, 33124, 47489, 51142, 55076, 66248, 94978, 102284, 110152, 178997, 189956, 204568, 332423, 357994, 379912, 664846, 715988, 1329692, 1431976, 2326961, 2659384, 4653922, 9307844, 18615688]

約数ペア:

[(1, 18615688), (2, 9307844), (4, 4653922), (7, 2659384), (8, 2326961), (13, 1431976), (14, 1329692), (26, 715988), (28, 664846), (49, 379912), (52, 357994), (56, 332423), (91, 204568), (98, 189956), (104, 178997), (169, 110152), (182, 102284), (196, 94978), (281, 66248), (338, 55076), (364, 51142), (392, 47489), (562, 33124), (637, 29224), (676, 27538), (728, 25571), (1124, 16562), (1183, 15736), (1274, 14612), (1352, 13769), (1967, 9464), (2248, 8281), (2366, 7868), (2548, 7306), (3653, 5096), (3934, 4732)]