21698028

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:527

約数の個数: 72

約数和(自身を含む): 60387600

約数和(自身を除く): 38689572

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 157, 198, 314, 349, 396, 471, 628, 698, 942, 1047, 1396, 1413, 1727, 1884, 2094, 2826, 3141, 3454, 3839, 4188, 5181, 5652, 6282, 6908, 7678, 10362, 11517, 12564, 15356, 15543, 20724, 23034, 31086, 34551, 46068, 54793, 62172, 69102, 109586, 138204, 164379, 219172, 328758, 493137, 602723, 657516, 986274, 1205446, 1808169, 1972548, 2410892, 3616338, 5424507, 7232676, 10849014, 21698028]

約数ペア:

[(1, 21698028), (2, 10849014), (3, 7232676), (4, 5424507), (6, 3616338), (9, 2410892), (11, 1972548), (12, 1808169), (18, 1205446), (22, 986274), (33, 657516), (36, 602723), (44, 493137), (66, 328758), (99, 219172), (132, 164379), (157, 138204), (198, 109586), (314, 69102), (349, 62172), (396, 54793), (471, 46068), (628, 34551), (698, 31086), (942, 23034), (1047, 20724), (1396, 15543), (1413, 15356), (1727, 12564), (1884, 11517), (2094, 10362), (2826, 7678), (3141, 6908), (3454, 6282), (3839, 5652), (4188, 5181)]