21038330

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:191

約数の個数: 48

約数和(自身を含む): 40970664

約数和(自身を除く): 19932334

約数列:

[1, 2, 5, 10, 23, 41, 46, 82, 97, 115, 194, 205, 230, 410, 485, 529, 943, 970, 1058, 1886, 2231, 2645, 3977, 4462, 4715, 5290, 7954, 9430, 11155, 19885, 21689, 22310, 39770, 43378, 51313, 91471, 102626, 108445, 182942, 216890, 256565, 457355, 513130, 914710, 2103833, 4207666, 10519165, 21038330]

約数ペア:

[(1, 21038330), (2, 10519165), (5, 4207666), (10, 2103833), (23, 914710), (41, 513130), (46, 457355), (82, 256565), (97, 216890), (115, 182942), (194, 108445), (205, 102626), (230, 91471), (410, 51313), (485, 43378), (529, 39770), (943, 22310), (970, 21689), (1058, 19885), (1886, 11155), (2231, 9430), (2645, 7954), (3977, 5290), (4462, 4715)]