18668416

素因数分解:

$2^7\times {\mathrm{13}}^2\times {\mathrm{863}}^1$

素因数の和:903

約数の個数: 48

約数和(自身を含む): 40318560

約数和(自身を除く): 21650144

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 338, 416, 676, 832, 863, 1352, 1664, 1726, 2704, 3452, 5408, 6904, 10816, 11219, 13808, 21632, 22438, 27616, 44876, 55232, 89752, 110464, 145847, 179504, 291694, 359008, 583388, 718016, 1166776, 1436032, 2333552, 4667104, 9334208, 18668416]

約数ペア:

[(1, 18668416), (2, 9334208), (4, 4667104), (8, 2333552), (13, 1436032), (16, 1166776), (26, 718016), (32, 583388), (52, 359008), (64, 291694), (104, 179504), (128, 145847), (169, 110464), (208, 89752), (338, 55232), (416, 44876), (676, 27616), (832, 22438), (863, 21632), (1352, 13808), (1664, 11219), (1726, 10816), (2704, 6904), (3452, 5408)]