21478716

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{28411}}^1$

素因数の和:28431

約数の個数: 48

約数和(自身を含む): 63642880

約数和(自身を除く): 42164164

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 28411, 56822, 85233, 113644, 170466, 198877, 255699, 340932, 397754, 511398, 596631, 767097, 795508, 1022796, 1193262, 1534194, 1789893, 2386524, 3068388, 3579786, 5369679, 7159572, 10739358, 21478716]

約数ペア:

[(1, 21478716), (2, 10739358), (3, 7159572), (4, 5369679), (6, 3579786), (7, 3068388), (9, 2386524), (12, 1789893), (14, 1534194), (18, 1193262), (21, 1022796), (27, 795508), (28, 767097), (36, 596631), (42, 511398), (54, 397754), (63, 340932), (84, 255699), (108, 198877), (126, 170466), (189, 113644), (252, 85233), (378, 56822), (756, 28411)]