21637428

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2207}}^1$

素因数の和:2276

約数の個数: 48

約数和(自身を含む): 54405120

約数和(自身を除く): 32767692

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 43, 57, 76, 86, 114, 129, 172, 228, 258, 516, 817, 1634, 2207, 2451, 3268, 4414, 4902, 6621, 8828, 9804, 13242, 26484, 41933, 83866, 94901, 125799, 167732, 189802, 251598, 284703, 379604, 503196, 569406, 1138812, 1803119, 3606238, 5409357, 7212476, 10818714, 21637428]

約数ペア:

[(1, 21637428), (2, 10818714), (3, 7212476), (4, 5409357), (6, 3606238), (12, 1803119), (19, 1138812), (38, 569406), (43, 503196), (57, 379604), (76, 284703), (86, 251598), (114, 189802), (129, 167732), (172, 125799), (228, 94901), (258, 83866), (516, 41933), (817, 26484), (1634, 13242), (2207, 9804), (2451, 8828), (3268, 6621), (4414, 4902)]