61391071

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 81423360

約数和(自身を除く): 20032289

約数列:

[1, 7, 19, 23, 47, 49, 61, 133, 161, 329, 427, 437, 893, 931, 1081, 1127, 1159, 1403, 2303, 2867, 2989, 3059, 6251, 7567, 8113, 9821, 20069, 20539, 21413, 26657, 43757, 52969, 54473, 56791, 65941, 68747, 140483, 143773, 186599, 381311, 461587, 1006411, 1252879, 1306193, 2669177, 3231109, 8770153, 61391071]

約数ペア:

[(1, 61391071), (7, 8770153), (19, 3231109), (23, 2669177), (47, 1306193), (49, 1252879), (61, 1006411), (133, 461587), (161, 381311), (329, 186599), (427, 143773), (437, 140483), (893, 68747), (931, 65941), (1081, 56791), (1127, 54473), (1159, 52969), (1403, 43757), (2303, 26657), (2867, 21413), (2989, 20539), (3059, 20069), (6251, 9821), (7567, 8113)]