71221538

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{21059}}^1$

素因数の和:21169

約数の個数: 16

約数和(自身を含む): 113724000

約数和(自身を除く): 42502462

約数列:

[1, 2, 19, 38, 89, 178, 1691, 3382, 21059, 42118, 400121, 800242, 1874251, 3748502, 35610769, 71221538]

約数ペア:

[(1, 71221538), (2, 35610769), (19, 3748502), (38, 1874251), (89, 800242), (178, 400121), (1691, 42118), (3382, 21059)]