21782012

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 24182788

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 149, 161, 227, 298, 322, 454, 596, 644, 908, 1043, 1589, 2086, 3178, 3427, 4172, 5221, 6356, 6854, 10442, 13708, 20884, 23989, 33823, 36547, 47978, 67646, 73094, 95956, 135292, 146188, 236761, 473522, 777929, 947044, 1555858, 3111716, 5445503, 10891006, 21782012]

約数ペア:

[(1, 21782012), (2, 10891006), (4, 5445503), (7, 3111716), (14, 1555858), (23, 947044), (28, 777929), (46, 473522), (92, 236761), (149, 146188), (161, 135292), (227, 95956), (298, 73094), (322, 67646), (454, 47978), (596, 36547), (644, 33823), (908, 23989), (1043, 20884), (1589, 13708), (2086, 10442), (3178, 6854), (3427, 6356), (4172, 5221)]