23428881

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1$

素因数の和:115

約数の個数: 72

約数和(自身を含む): 43709120

約数和(自身を除く): 20280239

約数列:

[1, 3, 7, 9, 19, 21, 23, 37, 57, 63, 69, 111, 133, 161, 171, 207, 259, 333, 399, 437, 483, 529, 703, 777, 851, 1197, 1311, 1449, 1587, 2109, 2331, 2553, 3059, 3703, 3933, 4761, 4921, 5957, 6327, 7659, 9177, 10051, 11109, 14763, 16169, 17871, 19573, 27531, 30153, 33327, 44289, 48507, 53613, 58719, 70357, 90459, 113183, 137011, 145521, 176157, 211071, 339549, 371887, 411033, 633213, 1018647, 1115661, 1233099, 2603209, 3346983, 7809627, 23428881]

約数ペア:

[(1, 23428881), (3, 7809627), (7, 3346983), (9, 2603209), (19, 1233099), (21, 1115661), (23, 1018647), (37, 633213), (57, 411033), (63, 371887), (69, 339549), (111, 211071), (133, 176157), (161, 145521), (171, 137011), (207, 113183), (259, 90459), (333, 70357), (399, 58719), (437, 53613), (483, 48507), (529, 44289), (703, 33327), (777, 30153), (851, 27531), (1197, 19573), (1311, 17871), (1449, 16169), (1587, 14763), (2109, 11109), (2331, 10051), (2553, 9177), (3059, 7659), (3703, 6327), (3933, 5957), (4761, 4921)]