21828204

素因数分解:

$2^2\times 3^5\times {\mathrm{17}}^1\times {\mathrm{1321}}^1$

素因数の和:1357

約数の個数: 72

約数和(自身を含む): 60632208

約数和(自身を除く): 38804004

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 81, 102, 108, 153, 162, 204, 243, 306, 324, 459, 486, 612, 918, 972, 1321, 1377, 1836, 2642, 2754, 3963, 4131, 5284, 5508, 7926, 8262, 11889, 15852, 16524, 22457, 23778, 35667, 44914, 47556, 67371, 71334, 89828, 107001, 134742, 142668, 202113, 214002, 269484, 321003, 404226, 428004, 606339, 642006, 808452, 1212678, 1284012, 1819017, 2425356, 3638034, 5457051, 7276068, 10914102, 21828204]

約数ペア:

[(1, 21828204), (2, 10914102), (3, 7276068), (4, 5457051), (6, 3638034), (9, 2425356), (12, 1819017), (17, 1284012), (18, 1212678), (27, 808452), (34, 642006), (36, 606339), (51, 428004), (54, 404226), (68, 321003), (81, 269484), (102, 214002), (108, 202113), (153, 142668), (162, 134742), (204, 107001), (243, 89828), (306, 71334), (324, 67371), (459, 47556), (486, 44914), (612, 35667), (918, 23778), (972, 22457), (1321, 16524), (1377, 15852), (1836, 11889), (2642, 8262), (2754, 7926), (3963, 5508), (4131, 5284)]