18942742

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 37537920

約数和(自身を除く): 18595178

約数列:

[1, 2, 7, 13, 14, 26, 29, 37, 58, 74, 91, 97, 182, 194, 203, 259, 377, 406, 481, 518, 679, 754, 962, 1073, 1261, 1358, 2146, 2522, 2639, 2813, 3367, 3589, 5278, 5626, 6734, 7178, 7511, 8827, 13949, 15022, 17654, 19691, 25123, 27898, 36569, 39382, 46657, 50246, 73138, 93314, 97643, 104081, 195286, 208162, 255983, 326599, 511966, 653198, 728567, 1353053, 1457134, 2706106, 9471371, 18942742]

約数ペア:

[(1, 18942742), (2, 9471371), (7, 2706106), (13, 1457134), (14, 1353053), (26, 728567), (29, 653198), (37, 511966), (58, 326599), (74, 255983), (91, 208162), (97, 195286), (182, 104081), (194, 97643), (203, 93314), (259, 73138), (377, 50246), (406, 46657), (481, 39382), (518, 36569), (679, 27898), (754, 25123), (962, 19691), (1073, 17654), (1261, 15022), (1358, 13949), (2146, 8827), (2522, 7511), (2639, 7178), (2813, 6734), (3367, 5626), (3589, 5278)]