21284952

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4013}}^1$

素因数の和:4052

約数の個数: 64

約数和(自身を含む): 60691680

約数和(自身を除く): 39406728

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 156, 204, 221, 312, 408, 442, 663, 884, 1326, 1768, 2652, 4013, 5304, 8026, 12039, 16052, 24078, 32104, 48156, 52169, 68221, 96312, 104338, 136442, 156507, 204663, 208676, 272884, 313014, 409326, 417352, 545768, 626028, 818652, 886873, 1252056, 1637304, 1773746, 2660619, 3547492, 5321238, 7094984, 10642476, 21284952]

約数ペア:

[(1, 21284952), (2, 10642476), (3, 7094984), (4, 5321238), (6, 3547492), (8, 2660619), (12, 1773746), (13, 1637304), (17, 1252056), (24, 886873), (26, 818652), (34, 626028), (39, 545768), (51, 417352), (52, 409326), (68, 313014), (78, 272884), (102, 208676), (104, 204663), (136, 156507), (156, 136442), (204, 104338), (221, 96312), (312, 68221), (408, 52169), (442, 48156), (663, 32104), (884, 24078), (1326, 16052), (1768, 12039), (2652, 8026), (4013, 5304)]