21265130

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1867}}^1$

素因数の和:1958

約数の個数: 32

約数和(自身を含む): 41155776

約数和(自身を除く): 19890646

約数列:

[1, 2, 5, 10, 17, 34, 67, 85, 134, 170, 335, 670, 1139, 1867, 2278, 3734, 5695, 9335, 11390, 18670, 31739, 63478, 125089, 158695, 250178, 317390, 625445, 1250890, 2126513, 4253026, 10632565, 21265130]

約数ペア:

[(1, 21265130), (2, 10632565), (5, 4253026), (10, 2126513), (17, 1250890), (34, 625445), (67, 317390), (85, 250178), (134, 158695), (170, 125089), (335, 63478), (670, 31739), (1139, 18670), (1867, 11390), (2278, 9335), (3734, 5695)]