21276970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14879}}^1$

素因数の和:14910

約数の個数: 32

約数和(自身を含む): 44997120

約数和(自身を除く): 23720150

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14879, 29758, 74395, 148790, 163669, 193427, 327338, 386854, 818345, 967135, 1636690, 1934270, 2127697, 4255394, 10638485, 21276970]

約数ペア:

[(1, 21276970), (2, 10638485), (5, 4255394), (10, 2127697), (11, 1934270), (13, 1636690), (22, 967135), (26, 818345), (55, 386854), (65, 327338), (110, 193427), (130, 163669), (143, 148790), (286, 74395), (715, 29758), (1430, 14879)]