31473519

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 24928401

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 71, 77, 101, 133, 209, 213, 231, 303, 399, 497, 627, 707, 781, 1111, 1349, 1463, 1491, 1919, 2121, 2343, 3333, 4047, 4389, 5467, 5757, 7171, 7777, 9443, 13433, 14839, 16401, 21109, 21513, 23331, 28329, 40299, 44517, 50197, 63327, 78881, 103873, 136249, 147763, 150591, 236643, 311619, 408747, 443289, 552167, 953743, 1498739, 1656501, 2861229, 4496217, 10491173, 31473519]

約数ペア:

[(1, 31473519), (3, 10491173), (7, 4496217), (11, 2861229), (19, 1656501), (21, 1498739), (33, 953743), (57, 552167), (71, 443289), (77, 408747), (101, 311619), (133, 236643), (209, 150591), (213, 147763), (231, 136249), (303, 103873), (399, 78881), (497, 63327), (627, 50197), (707, 44517), (781, 40299), (1111, 28329), (1349, 23331), (1463, 21513), (1491, 21109), (1919, 16401), (2121, 14839), (2343, 13433), (3333, 9443), (4047, 7777), (4389, 7171), (5467, 5757)]