31118517

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 51217920

約数和(自身を除く): 20099403

約数列:

[1, 3, 9, 17, 23, 37, 51, 69, 111, 153, 207, 239, 333, 391, 629, 717, 851, 1173, 1887, 2151, 2553, 3519, 4063, 5497, 5661, 7659, 8843, 12189, 14467, 16491, 26529, 36567, 43401, 49473, 79587, 93449, 130203, 150331, 203389, 280347, 450993, 610167, 841041, 1352979, 1830501, 3457613, 10372839, 31118517]

約数ペア:

[(1, 31118517), (3, 10372839), (9, 3457613), (17, 1830501), (23, 1352979), (37, 841041), (51, 610167), (69, 450993), (111, 280347), (153, 203389), (207, 150331), (239, 130203), (333, 93449), (391, 79587), (629, 49473), (717, 43401), (851, 36567), (1173, 26529), (1887, 16491), (2151, 14467), (2553, 12189), (3519, 8843), (4063, 7659), (5497, 5661)]