21721300

素因数分解:

$2^2\times 5^2\times {\mathrm{281}}^1\times {\mathrm{773}}^1$

素因数の和:1068

約数の個数: 36

約数和(自身を含む): 47364156

約数和(自身を除く): 25642856

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 281, 562, 773, 1124, 1405, 1546, 2810, 3092, 3865, 5620, 7025, 7730, 14050, 15460, 19325, 28100, 38650, 77300, 217213, 434426, 868852, 1086065, 2172130, 4344260, 5430325, 10860650, 21721300]

約数ペア:

[(1, 21721300), (2, 10860650), (4, 5430325), (5, 4344260), (10, 2172130), (20, 1086065), (25, 868852), (50, 434426), (100, 217213), (281, 77300), (562, 38650), (773, 28100), (1124, 19325), (1405, 15460), (1546, 14050), (2810, 7730), (3092, 7025), (3865, 5620)]