21382956

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1601}}^1$

素因数の和:1671

約数の個数: 72

約数和(自身を含む): 62977824

約数和(自身を除く): 41594868

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 53, 63, 84, 106, 126, 159, 212, 252, 318, 371, 477, 636, 742, 954, 1113, 1484, 1601, 1908, 2226, 3202, 3339, 4452, 4803, 6404, 6678, 9606, 11207, 13356, 14409, 19212, 22414, 28818, 33621, 44828, 57636, 67242, 84853, 100863, 134484, 169706, 201726, 254559, 339412, 403452, 509118, 593971, 763677, 1018236, 1187942, 1527354, 1781913, 2375884, 3054708, 3563826, 5345739, 7127652, 10691478, 21382956]

約数ペア:

[(1, 21382956), (2, 10691478), (3, 7127652), (4, 5345739), (6, 3563826), (7, 3054708), (9, 2375884), (12, 1781913), (14, 1527354), (18, 1187942), (21, 1018236), (28, 763677), (36, 593971), (42, 509118), (53, 403452), (63, 339412), (84, 254559), (106, 201726), (126, 169706), (159, 134484), (212, 100863), (252, 84853), (318, 67242), (371, 57636), (477, 44828), (636, 33621), (742, 28818), (954, 22414), (1113, 19212), (1484, 14409), (1601, 13356), (1908, 11207), (2226, 9606), (3202, 6678), (3339, 6404), (4452, 4803)]