21604360

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1021}}^1$

素因数の和:1078

約数の個数: 48

約数和(自身を含む): 50864940

約数和(自身を除く): 29260580

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 920, 1021, 1058, 2042, 2116, 2645, 4084, 4232, 5105, 5290, 8168, 10210, 10580, 20420, 21160, 23483, 40840, 46966, 93932, 117415, 187864, 234830, 469660, 540109, 939320, 1080218, 2160436, 2700545, 4320872, 5401090, 10802180, 21604360]

約数ペア:

[(1, 21604360), (2, 10802180), (4, 5401090), (5, 4320872), (8, 2700545), (10, 2160436), (20, 1080218), (23, 939320), (40, 540109), (46, 469660), (92, 234830), (115, 187864), (184, 117415), (230, 93932), (460, 46966), (529, 40840), (920, 23483), (1021, 21160), (1058, 20420), (2042, 10580), (2116, 10210), (2645, 8168), (4084, 5290), (4232, 5105)]