71673921

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1151}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 122923008

約数和(自身を除く): 51249087

約数列:

[1, 3, 9, 11, 17, 33, 37, 51, 99, 111, 153, 187, 333, 407, 561, 629, 1151, 1221, 1683, 1887, 3453, 3663, 5661, 6919, 10359, 12661, 19567, 20757, 37983, 42587, 58701, 62271, 113949, 127761, 176103, 215237, 383283, 468457, 645711, 723979, 1405371, 1937133, 2171937, 4216113, 6515811, 7963769, 23891307, 71673921]

約数ペア:

[(1, 71673921), (3, 23891307), (9, 7963769), (11, 6515811), (17, 4216113), (33, 2171937), (37, 1937133), (51, 1405371), (99, 723979), (111, 645711), (153, 468457), (187, 383283), (333, 215237), (407, 176103), (561, 127761), (629, 113949), (1151, 62271), (1221, 58701), (1683, 42587), (1887, 37983), (3453, 20757), (3663, 19567), (5661, 12661), (6919, 10359)]