21319380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1427}}^1$

素因数の和:1525

約数の個数: 72

約数和(自身を含む): 65493792

約数和(自身を除く): 44174412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1245, 1427, 1494, 1660, 2490, 2854, 2988, 3735, 4281, 4980, 5708, 7135, 7470, 8562, 12843, 14270, 14940, 17124, 21405, 25686, 28540, 42810, 51372, 64215, 85620, 118441, 128430, 236882, 256860, 355323, 473764, 592205, 710646, 1065969, 1184410, 1421292, 1776615, 2131938, 2368820, 3553230, 4263876, 5329845, 7106460, 10659690, 21319380]

約数ペア:

[(1, 21319380), (2, 10659690), (3, 7106460), (4, 5329845), (5, 4263876), (6, 3553230), (9, 2368820), (10, 2131938), (12, 1776615), (15, 1421292), (18, 1184410), (20, 1065969), (30, 710646), (36, 592205), (45, 473764), (60, 355323), (83, 256860), (90, 236882), (166, 128430), (180, 118441), (249, 85620), (332, 64215), (415, 51372), (498, 42810), (747, 28540), (830, 25686), (996, 21405), (1245, 17124), (1427, 14940), (1494, 14270), (1660, 12843), (2490, 8562), (2854, 7470), (2988, 7135), (3735, 5708), (4281, 4980)]