18979896

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{479}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 51609600

約数和(自身を除く): 32629704

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 127, 156, 254, 312, 381, 479, 508, 762, 958, 1016, 1437, 1524, 1651, 1916, 2874, 3048, 3302, 3832, 4953, 5748, 6227, 6604, 9906, 11496, 12454, 13208, 18681, 19812, 24908, 37362, 39624, 49816, 60833, 74724, 121666, 149448, 182499, 243332, 364998, 486664, 729996, 790829, 1459992, 1581658, 2372487, 3163316, 4744974, 6326632, 9489948, 18979896]

約数ペア:

[(1, 18979896), (2, 9489948), (3, 6326632), (4, 4744974), (6, 3163316), (8, 2372487), (12, 1581658), (13, 1459992), (24, 790829), (26, 729996), (39, 486664), (52, 364998), (78, 243332), (104, 182499), (127, 149448), (156, 121666), (254, 74724), (312, 60833), (381, 49816), (479, 39624), (508, 37362), (762, 24908), (958, 19812), (1016, 18681), (1437, 13208), (1524, 12454), (1651, 11496), (1916, 9906), (2874, 6604), (3048, 6227), (3302, 5748), (3832, 4953)]