21238812

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{311}}^1$

素因数の和:599

約数の個数: 72

約数和(自身を含む): 61780992

約数和(自身を除く): 40542180

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 271, 311, 542, 622, 813, 933, 1084, 1244, 1626, 1866, 1897, 2177, 2439, 2799, 3252, 3732, 3794, 4354, 4878, 5598, 5691, 6531, 7588, 8708, 9756, 11196, 11382, 13062, 17073, 19593, 22764, 26124, 34146, 39186, 68292, 78372, 84281, 168562, 252843, 337124, 505686, 589967, 758529, 1011372, 1179934, 1517058, 1769901, 2359868, 3034116, 3539802, 5309703, 7079604, 10619406, 21238812]

約数ペア:

[(1, 21238812), (2, 10619406), (3, 7079604), (4, 5309703), (6, 3539802), (7, 3034116), (9, 2359868), (12, 1769901), (14, 1517058), (18, 1179934), (21, 1011372), (28, 758529), (36, 589967), (42, 505686), (63, 337124), (84, 252843), (126, 168562), (252, 84281), (271, 78372), (311, 68292), (542, 39186), (622, 34146), (813, 26124), (933, 22764), (1084, 19593), (1244, 17073), (1626, 13062), (1866, 11382), (1897, 11196), (2177, 9756), (2439, 8708), (2799, 7588), (3252, 6531), (3732, 5691), (3794, 5598), (4354, 4878)]