21374032

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{439}}^1$

素因数の和:643

約数の個数: 40

約数和(自身を含む): 44193600

約数和(自身を除く): 22819568

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 179, 272, 358, 439, 716, 878, 1432, 1756, 2864, 3043, 3512, 6086, 7024, 7463, 12172, 14926, 24344, 29852, 48688, 59704, 78581, 119408, 157162, 314324, 628648, 1257296, 1335877, 2671754, 5343508, 10687016, 21374032]

約数ペア:

[(1, 21374032), (2, 10687016), (4, 5343508), (8, 2671754), (16, 1335877), (17, 1257296), (34, 628648), (68, 314324), (136, 157162), (179, 119408), (272, 78581), (358, 59704), (439, 48688), (716, 29852), (878, 24344), (1432, 14926), (1756, 12172), (2864, 7463), (3043, 7024), (3512, 6086)]