21186284

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{947}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 45868032

約数和(自身を除く): 24681748

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 47, 68, 94, 119, 188, 238, 329, 476, 658, 799, 947, 1316, 1598, 1894, 3196, 3788, 5593, 6629, 11186, 13258, 16099, 22372, 26516, 32198, 44509, 64396, 89018, 112693, 178036, 225386, 311563, 450772, 623126, 756653, 1246252, 1513306, 3026612, 5296571, 10593142, 21186284]

約数ペア:

[(1, 21186284), (2, 10593142), (4, 5296571), (7, 3026612), (14, 1513306), (17, 1246252), (28, 756653), (34, 623126), (47, 450772), (68, 311563), (94, 225386), (119, 178036), (188, 112693), (238, 89018), (329, 64396), (476, 44509), (658, 32198), (799, 26516), (947, 22372), (1316, 16099), (1598, 13258), (1894, 11186), (3196, 6629), (3788, 5593)]