21551275156

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{263}}^1\times {\mathrm{7393}}^1$

素因数の和:7840

約数の個数: 48

約数和(自身を含む): 40336458624

約数和(自身を除く): 18785183468

約数列:

[1, 2, 4, 17, 34, 68, 163, 263, 326, 526, 652, 1052, 2771, 4471, 5542, 7393, 8942, 11084, 14786, 17884, 29572, 42869, 85738, 125681, 171476, 251362, 502724, 728773, 1205059, 1457546, 1944359, 2410118, 2915092, 3888718, 4820236, 7777436, 20486003, 33054103, 40972006, 66108206, 81944012, 132216412, 316930517, 633861034, 1267722068, 5387818789, 10775637578, 21551275156]

約数ペア:

[(1, 21551275156), (2, 10775637578), (4, 5387818789), (17, 1267722068), (34, 633861034), (68, 316930517), (163, 132216412), (263, 81944012), (326, 66108206), (526, 40972006), (652, 33054103), (1052, 20486003), (2771, 7777436), (4471, 4820236), (5542, 3888718), (7393, 2915092), (8942, 2410118), (11084, 1944359), (14786, 1457546), (17884, 1205059), (29572, 728773), (42869, 502724), (85738, 251362), (125681, 171476)]