16998255

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^2$

素因数の和:130

約数の個数: 60

約数和(自身を含む): 32771640

約数和(自身を除く): 15773385

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 47, 57, 81, 95, 135, 141, 171, 235, 285, 405, 423, 513, 705, 855, 893, 1269, 1539, 2115, 2209, 2565, 2679, 3807, 4465, 6345, 6627, 7695, 8037, 11045, 13395, 19035, 19881, 24111, 33135, 40185, 41971, 59643, 72333, 99405, 120555, 125913, 178929, 209855, 298215, 361665, 377739, 629565, 894645, 1133217, 1888695, 3399651, 5666085, 16998255]

約数ペア:

[(1, 16998255), (3, 5666085), (5, 3399651), (9, 1888695), (15, 1133217), (19, 894645), (27, 629565), (45, 377739), (47, 361665), (57, 298215), (81, 209855), (95, 178929), (135, 125913), (141, 120555), (171, 99405), (235, 72333), (285, 59643), (405, 41971), (423, 40185), (513, 33135), (705, 24111), (855, 19881), (893, 19035), (1269, 13395), (1539, 11045), (2115, 8037), (2209, 7695), (2565, 6627), (2679, 6345), (3807, 4465)]