19813884

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2\times {\mathrm{47}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 50883840

約数和(自身を除く): 31069956

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 43, 47, 57, 76, 86, 94, 114, 129, 141, 172, 188, 228, 258, 282, 516, 564, 817, 893, 1634, 1786, 1849, 2021, 2451, 2679, 3268, 3572, 3698, 4042, 4902, 5358, 5547, 6063, 7396, 8084, 9804, 10716, 11094, 12126, 22188, 24252, 35131, 38399, 70262, 76798, 86903, 105393, 115197, 140524, 153596, 173806, 210786, 230394, 260709, 347612, 421572, 460788, 521418, 1042836, 1651157, 3302314, 4953471, 6604628, 9906942, 19813884]

約数ペア:

[(1, 19813884), (2, 9906942), (3, 6604628), (4, 4953471), (6, 3302314), (12, 1651157), (19, 1042836), (38, 521418), (43, 460788), (47, 421572), (57, 347612), (76, 260709), (86, 230394), (94, 210786), (114, 173806), (129, 153596), (141, 140524), (172, 115197), (188, 105393), (228, 86903), (258, 76798), (282, 70262), (516, 38399), (564, 35131), (817, 24252), (893, 22188), (1634, 12126), (1786, 11094), (1849, 10716), (2021, 9804), (2451, 8084), (2679, 7396), (3268, 6063), (3572, 5547), (3698, 5358), (4042, 4902)]