21246288

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1709}}^1$

素因数の和:1764

約数の個数: 80

約数和(自身を含む): 64460160

約数和(自身を除く): 43213872

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 37, 42, 48, 56, 74, 84, 111, 112, 148, 168, 222, 259, 296, 336, 444, 518, 592, 777, 888, 1036, 1554, 1709, 1776, 2072, 3108, 3418, 4144, 5127, 6216, 6836, 10254, 11963, 12432, 13672, 20508, 23926, 27344, 35889, 41016, 47852, 63233, 71778, 82032, 95704, 126466, 143556, 189699, 191408, 252932, 287112, 379398, 442631, 505864, 574224, 758796, 885262, 1011728, 1327893, 1517592, 1770524, 2655786, 3035184, 3541048, 5311572, 7082096, 10623144, 21246288]

約数ペア:

[(1, 21246288), (2, 10623144), (3, 7082096), (4, 5311572), (6, 3541048), (7, 3035184), (8, 2655786), (12, 1770524), (14, 1517592), (16, 1327893), (21, 1011728), (24, 885262), (28, 758796), (37, 574224), (42, 505864), (48, 442631), (56, 379398), (74, 287112), (84, 252932), (111, 191408), (112, 189699), (148, 143556), (168, 126466), (222, 95704), (259, 82032), (296, 71778), (336, 63233), (444, 47852), (518, 41016), (592, 35889), (777, 27344), (888, 23926), (1036, 20508), (1554, 13672), (1709, 12432), (1776, 11963), (2072, 10254), (3108, 6836), (3418, 6216), (4144, 5127)]