21481300

素因数分解:

$2^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{1901}}^1$

素因数の和:2028

約数の個数: 36

約数和(自身を含む): 47051676

約数和(自身を除く): 25570376

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 113, 226, 452, 565, 1130, 1901, 2260, 2825, 3802, 5650, 7604, 9505, 11300, 19010, 38020, 47525, 95050, 190100, 214813, 429626, 859252, 1074065, 2148130, 4296260, 5370325, 10740650, 21481300]

約数ペア:

[(1, 21481300), (2, 10740650), (4, 5370325), (5, 4296260), (10, 2148130), (20, 1074065), (25, 859252), (50, 429626), (100, 214813), (113, 190100), (226, 95050), (452, 47525), (565, 38020), (1130, 19010), (1901, 11300), (2260, 9505), (2825, 7604), (3802, 5650)]