19981692

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:383

約数の個数: 72

約数和(自身を含む): 53813760

約数和(自身を除く): 33832068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 131, 171, 223, 228, 262, 342, 393, 446, 524, 669, 684, 786, 892, 1179, 1338, 1572, 2007, 2358, 2489, 2676, 4014, 4237, 4716, 4978, 7467, 8028, 8474, 9956, 12711, 14934, 16948, 22401, 25422, 29213, 29868, 38133, 44802, 50844, 58426, 76266, 87639, 89604, 116852, 152532, 175278, 262917, 350556, 525834, 555047, 1051668, 1110094, 1665141, 2220188, 3330282, 4995423, 6660564, 9990846, 19981692]

約数ペア:

[(1, 19981692), (2, 9990846), (3, 6660564), (4, 4995423), (6, 3330282), (9, 2220188), (12, 1665141), (18, 1110094), (19, 1051668), (36, 555047), (38, 525834), (57, 350556), (76, 262917), (114, 175278), (131, 152532), (171, 116852), (223, 89604), (228, 87639), (262, 76266), (342, 58426), (393, 50844), (446, 44802), (524, 38133), (669, 29868), (684, 29213), (786, 25422), (892, 22401), (1179, 16948), (1338, 14934), (1572, 12711), (2007, 9956), (2358, 8474), (2489, 8028), (2676, 7467), (4014, 4978), (4237, 4716)]