20947728

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:356

約数の個数: 80

約数和(自身を含む): 57774080

約数和(自身を除く): 36826352

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 103, 114, 152, 206, 223, 228, 304, 309, 412, 446, 456, 618, 669, 824, 892, 912, 1236, 1338, 1648, 1784, 1957, 2472, 2676, 3568, 3914, 4237, 4944, 5352, 5871, 7828, 8474, 10704, 11742, 12711, 15656, 16948, 22969, 23484, 25422, 31312, 33896, 45938, 46968, 50844, 67792, 68907, 91876, 93936, 101688, 137814, 183752, 203376, 275628, 367504, 436411, 551256, 872822, 1102512, 1309233, 1745644, 2618466, 3491288, 5236932, 6982576, 10473864, 20947728]

約数ペア:

[(1, 20947728), (2, 10473864), (3, 6982576), (4, 5236932), (6, 3491288), (8, 2618466), (12, 1745644), (16, 1309233), (19, 1102512), (24, 872822), (38, 551256), (48, 436411), (57, 367504), (76, 275628), (103, 203376), (114, 183752), (152, 137814), (206, 101688), (223, 93936), (228, 91876), (304, 68907), (309, 67792), (412, 50844), (446, 46968), (456, 45938), (618, 33896), (669, 31312), (824, 25422), (892, 23484), (912, 22969), (1236, 16948), (1338, 15656), (1648, 12711), (1784, 11742), (1957, 10704), (2472, 8474), (2676, 7828), (3568, 5871), (3914, 5352), (4237, 4944)]