21055080670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{881}}^1\times {\mathrm{7993}}^1$

素因数の和:8917

約数の個数: 64

約数和(自身を含む): 42642681984

約数和(自身を除く): 21587601314

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 881, 1495, 1762, 2990, 4405, 7993, 8810, 11453, 15986, 20263, 22906, 39965, 40526, 57265, 79930, 101315, 103909, 114530, 183839, 202630, 207818, 263419, 367678, 519545, 526838, 919195, 1039090, 1317095, 1838390, 2389907, 2634190, 4779814, 7041833, 11949535, 14083666, 23899070, 35209165, 70418330, 91543829, 161962159, 183087658, 323924318, 457719145, 809810795, 915438290, 1619621590, 2105508067, 4211016134, 10527540335, 21055080670]

約数ペア:

[(1, 21055080670), (2, 10527540335), (5, 4211016134), (10, 2105508067), (13, 1619621590), (23, 915438290), (26, 809810795), (46, 457719145), (65, 323924318), (115, 183087658), (130, 161962159), (230, 91543829), (299, 70418330), (598, 35209165), (881, 23899070), (1495, 14083666), (1762, 11949535), (2990, 7041833), (4405, 4779814), (7993, 2634190), (8810, 2389907), (11453, 1838390), (15986, 1317095), (20263, 1039090), (22906, 919195), (39965, 526838), (40526, 519545), (57265, 367678), (79930, 263419), (101315, 207818), (103909, 202630), (114530, 183839)]