21599588

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 20313052

約数列:

[1, 2, 4, 17, 34, 43, 68, 83, 86, 89, 166, 172, 178, 332, 356, 731, 1411, 1462, 1513, 2822, 2924, 3026, 3569, 3827, 5644, 6052, 7138, 7387, 7654, 14276, 14774, 15308, 29548, 60673, 65059, 121346, 125579, 130118, 242692, 251158, 260236, 317641, 502316, 635282, 1270564, 5399897, 10799794, 21599588]

約数ペア:

[(1, 21599588), (2, 10799794), (4, 5399897), (17, 1270564), (34, 635282), (43, 502316), (68, 317641), (83, 260236), (86, 251158), (89, 242692), (166, 130118), (172, 125579), (178, 121346), (332, 65059), (356, 60673), (731, 29548), (1411, 15308), (1462, 14774), (1513, 14276), (2822, 7654), (2924, 7387), (3026, 7138), (3569, 6052), (3827, 5644)]