21294060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18679}}^1$

素因数の和:18710

約数の個数: 48

約数和(自身を含む): 62764800

約数和(自身を除く): 41470740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18679, 37358, 56037, 74716, 93395, 112074, 186790, 224148, 280185, 354901, 373580, 560370, 709802, 1064703, 1120740, 1419604, 1774505, 2129406, 3549010, 4258812, 5323515, 7098020, 10647030, 21294060]

約数ペア:

[(1, 21294060), (2, 10647030), (3, 7098020), (4, 5323515), (5, 4258812), (6, 3549010), (10, 2129406), (12, 1774505), (15, 1419604), (19, 1120740), (20, 1064703), (30, 709802), (38, 560370), (57, 373580), (60, 354901), (76, 280185), (95, 224148), (114, 186790), (190, 112074), (228, 93395), (285, 74716), (380, 56037), (570, 37358), (1140, 18679)]