21087637630

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{347}}^1\times {\mathrm{1621}}^1$

素因数の和:2161

約数の個数: 64

約数和(自身を含む): 39990578688

約数和(自身を除く): 18902941058

約数列:

[1, 2, 5, 10, 23, 46, 115, 163, 230, 326, 347, 694, 815, 1621, 1630, 1735, 3242, 3470, 3749, 7498, 7981, 8105, 15962, 16210, 18745, 37283, 37490, 39905, 56561, 74566, 79810, 113122, 186415, 264223, 282805, 372830, 528446, 562487, 565610, 1124974, 1300903, 1321115, 2601806, 2642230, 2812435, 5624870, 6077129, 6504515, 12154258, 12937201, 13009030, 25874402, 30385645, 60771290, 64686005, 91685381, 129372010, 183370762, 458426905, 916853810, 2108763763, 4217527526, 10543818815, 21087637630]

約数ペア:

[(1, 21087637630), (2, 10543818815), (5, 4217527526), (10, 2108763763), (23, 916853810), (46, 458426905), (115, 183370762), (163, 129372010), (230, 91685381), (326, 64686005), (347, 60771290), (694, 30385645), (815, 25874402), (1621, 13009030), (1630, 12937201), (1735, 12154258), (3242, 6504515), (3470, 6077129), (3749, 5624870), (7498, 2812435), (7981, 2642230), (8105, 2601806), (15962, 1321115), (16210, 1300903), (18745, 1124974), (37283, 565610), (37490, 562487), (39905, 528446), (56561, 372830), (74566, 282805), (79810, 264223), (113122, 186415)]