21405894

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{1049}}^1$

素因数の和:1252

約数の個数: 32

約数和(自身を含む): 45360000

約数和(自身を除く): 23954106

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 179, 358, 537, 1049, 1074, 2098, 3147, 3401, 6294, 6802, 10203, 19931, 20406, 39862, 59793, 119586, 187771, 375542, 563313, 1126626, 3567649, 7135298, 10702947, 21405894]

約数ペア:

[(1, 21405894), (2, 10702947), (3, 7135298), (6, 3567649), (19, 1126626), (38, 563313), (57, 375542), (114, 187771), (179, 119586), (358, 59793), (537, 39862), (1049, 20406), (1074, 19931), (2098, 10203), (3147, 6802), (3401, 6294)]