21290147225

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{719}}^1\times {\mathrm{2239}}^1$

素因数の和:3014

約数の個数: 36

約数和(自身を含む): 27648230400

約数和(自身を除く): 6358083175

約数列:

[1, 5, 23, 25, 115, 529, 575, 719, 2239, 2645, 3595, 11195, 13225, 16537, 17975, 51497, 55975, 82685, 257485, 380351, 413425, 1184431, 1287425, 1609841, 1901755, 5922155, 8049205, 9508775, 29610775, 37026343, 40246025, 185131715, 851605889, 925658575, 4258029445, 21290147225]

約数ペア:

[(1, 21290147225), (5, 4258029445), (23, 925658575), (25, 851605889), (115, 185131715), (529, 40246025), (575, 37026343), (719, 29610775), (2239, 9508775), (2645, 8049205), (3595, 5922155), (11195, 1901755), (13225, 1609841), (16537, 1287425), (17975, 1184431), (51497, 413425), (55975, 380351), (82685, 257485)]