21635572

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9781}}^1$

素因数の和:9871

約数の個数: 24

約数和(自身を含む): 43823360

約数和(自身を除く): 22187788

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9781, 19562, 39124, 68467, 136934, 273868, 772699, 1545398, 3090796, 5408893, 10817786, 21635572]

約数ペア:

[(1, 21635572), (2, 10817786), (4, 5408893), (7, 3090796), (14, 1545398), (28, 772699), (79, 273868), (158, 136934), (316, 68467), (553, 39124), (1106, 19562), (2212, 9781)]