21254562

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{18743}}^1$

素因数の和:18764

約数の個数: 40

約数和(自身を含む): 54432576

約数和(自身を除く): 33178014

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 18743, 37486, 56229, 112458, 131201, 168687, 262402, 337374, 393603, 506061, 787206, 1012122, 1180809, 1518183, 2361618, 3036366, 3542427, 7084854, 10627281, 21254562]

約数ペア:

[(1, 21254562), (2, 10627281), (3, 7084854), (6, 3542427), (7, 3036366), (9, 2361618), (14, 1518183), (18, 1180809), (21, 1012122), (27, 787206), (42, 506061), (54, 393603), (63, 337374), (81, 262402), (126, 168687), (162, 131201), (189, 112458), (378, 56229), (567, 37486), (1134, 18743)]