21961796

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{227}}^1$

素因数の和:336

約数の個数: 36

約数和(自身を含む): 41349168

約数和(自身を除く): 19387372

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 227, 268, 361, 454, 722, 908, 1273, 1444, 2546, 4313, 5092, 8626, 15209, 17252, 24187, 30418, 48374, 60836, 81947, 96748, 163894, 288971, 327788, 577942, 1155884, 5490449, 10980898, 21961796]

約数ペア:

[(1, 21961796), (2, 10980898), (4, 5490449), (19, 1155884), (38, 577942), (67, 327788), (76, 288971), (134, 163894), (227, 96748), (268, 81947), (361, 60836), (454, 48374), (722, 30418), (908, 24187), (1273, 17252), (1444, 15209), (2546, 8626), (4313, 5092)]