21318948

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2729}}^1$

素因数の和:2777

約数の個数: 72

約数和(自身を含む): 63598080

約数和(自身を除く): 42279132

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 186, 217, 252, 279, 372, 434, 558, 651, 868, 1116, 1302, 1953, 2604, 2729, 3906, 5458, 7812, 8187, 10916, 16374, 19103, 24561, 32748, 38206, 49122, 57309, 76412, 84599, 98244, 114618, 169198, 171927, 229236, 253797, 338396, 343854, 507594, 592193, 687708, 761391, 1015188, 1184386, 1522782, 1776579, 2368772, 3045564, 3553158, 5329737, 7106316, 10659474, 21318948]

約数ペア:

[(1, 21318948), (2, 10659474), (3, 7106316), (4, 5329737), (6, 3553158), (7, 3045564), (9, 2368772), (12, 1776579), (14, 1522782), (18, 1184386), (21, 1015188), (28, 761391), (31, 687708), (36, 592193), (42, 507594), (62, 343854), (63, 338396), (84, 253797), (93, 229236), (124, 171927), (126, 169198), (186, 114618), (217, 98244), (252, 84599), (279, 76412), (372, 57309), (434, 49122), (558, 38206), (651, 32748), (868, 24561), (1116, 19103), (1302, 16374), (1953, 10916), (2604, 8187), (2729, 7812), (3906, 5458)]