21065931828

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{319937}}^1$

素因数の和:320037

約数の個数: 72

約数和(自身を含む): 55899567360

約数和(自身を除く): 34833635532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 59, 62, 93, 118, 124, 177, 186, 236, 279, 354, 372, 531, 558, 708, 1062, 1116, 1829, 2124, 3658, 5487, 7316, 10974, 16461, 21948, 32922, 65844, 319937, 639874, 959811, 1279748, 1919622, 2879433, 3839244, 5758866, 9918047, 11517732, 18876283, 19836094, 29754141, 37752566, 39672188, 56628849, 59508282, 75505132, 89262423, 113257698, 119016564, 169886547, 178524846, 226515396, 339773094, 357049692, 585164773, 679546188, 1170329546, 1755494319, 2340659092, 3510988638, 5266482957, 7021977276, 10532965914, 21065931828]

約数ペア:

[(1, 21065931828), (2, 10532965914), (3, 7021977276), (4, 5266482957), (6, 3510988638), (9, 2340659092), (12, 1755494319), (18, 1170329546), (31, 679546188), (36, 585164773), (59, 357049692), (62, 339773094), (93, 226515396), (118, 178524846), (124, 169886547), (177, 119016564), (186, 113257698), (236, 89262423), (279, 75505132), (354, 59508282), (372, 56628849), (531, 39672188), (558, 37752566), (708, 29754141), (1062, 19836094), (1116, 18876283), (1829, 11517732), (2124, 9918047), (3658, 5758866), (5487, 3839244), (7316, 2879433), (10974, 1919622), (16461, 1279748), (21948, 959811), (32922, 639874), (65844, 319937)]