21584810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7219}}^1$

素因数の和:7262

約数の個数: 32

約数和(自身を含む): 43666560

約数和(自身を除く): 22081750

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 7219, 14438, 36095, 72190, 93847, 166037, 187694, 332074, 469235, 830185, 938470, 1660370, 2158481, 4316962, 10792405, 21584810]

約数ペア:

[(1, 21584810), (2, 10792405), (5, 4316962), (10, 2158481), (13, 1660370), (23, 938470), (26, 830185), (46, 469235), (65, 332074), (115, 187694), (130, 166037), (230, 93847), (299, 72190), (598, 36095), (1495, 14438), (2990, 7219)]