19938996

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7193}}^1$

素因数の和:7221

約数の個数: 72

約数和(自身を含む): 62846784

約数和(自身を除く): 42907788

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 126, 132, 154, 198, 231, 252, 308, 396, 462, 693, 924, 1386, 2772, 7193, 14386, 21579, 28772, 43158, 50351, 64737, 79123, 86316, 100702, 129474, 151053, 158246, 201404, 237369, 258948, 302106, 316492, 453159, 474738, 553861, 604212, 712107, 906318, 949476, 1107722, 1424214, 1661583, 1812636, 2215444, 2848428, 3323166, 4984749, 6646332, 9969498, 19938996]

約数ペア:

[(1, 19938996), (2, 9969498), (3, 6646332), (4, 4984749), (6, 3323166), (7, 2848428), (9, 2215444), (11, 1812636), (12, 1661583), (14, 1424214), (18, 1107722), (21, 949476), (22, 906318), (28, 712107), (33, 604212), (36, 553861), (42, 474738), (44, 453159), (63, 316492), (66, 302106), (77, 258948), (84, 237369), (99, 201404), (126, 158246), (132, 151053), (154, 129474), (198, 100702), (231, 86316), (252, 79123), (308, 64737), (396, 50351), (462, 43158), (693, 28772), (924, 21579), (1386, 14386), (2772, 7193)]