18478694

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{431}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 32006016

約数和(自身を除く): 13527322

約数列:

[1, 2, 13, 17, 26, 34, 97, 194, 221, 431, 442, 862, 1261, 1649, 2522, 3298, 5603, 7327, 11206, 14654, 21437, 41807, 42874, 83614, 95251, 190502, 543491, 710719, 1086982, 1421438, 9239347, 18478694]

約数ペア:

[(1, 18478694), (2, 9239347), (13, 1421438), (17, 1086982), (26, 710719), (34, 543491), (97, 190502), (194, 95251), (221, 83614), (431, 42874), (442, 41807), (862, 21437), (1261, 14654), (1649, 11206), (2522, 7327), (3298, 5603)]