21818830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1427}}^1$

素因数の和:1584

約数の個数: 32

約数和(自身を含む): 43182720

約数和(自身を除く): 21363890

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 139, 278, 695, 1390, 1427, 1529, 2854, 3058, 7135, 7645, 14270, 15290, 15697, 31394, 78485, 156970, 198353, 396706, 991765, 1983530, 2181883, 4363766, 10909415, 21818830]

約数ペア:

[(1, 21818830), (2, 10909415), (5, 4363766), (10, 2181883), (11, 1983530), (22, 991765), (55, 396706), (110, 198353), (139, 156970), (278, 78485), (695, 31394), (1390, 15697), (1427, 15290), (1529, 14270), (2854, 7645), (3058, 7135)]