20649888

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{10243}}^1$

素因数の和:10266

約数の個数: 72

約数和(自身を含む): 67118688

約数和(自身を除く): 46468800

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 1008, 2016, 10243, 20486, 30729, 40972, 61458, 71701, 81944, 92187, 122916, 143402, 163888, 184374, 215103, 245832, 286804, 327776, 368748, 430206, 491664, 573608, 645309, 737496, 860412, 983328, 1147216, 1290618, 1474992, 1720824, 2294432, 2581236, 2949984, 3441648, 5162472, 6883296, 10324944, 20649888]

約数ペア:

[(1, 20649888), (2, 10324944), (3, 6883296), (4, 5162472), (6, 3441648), (7, 2949984), (8, 2581236), (9, 2294432), (12, 1720824), (14, 1474992), (16, 1290618), (18, 1147216), (21, 983328), (24, 860412), (28, 737496), (32, 645309), (36, 573608), (42, 491664), (48, 430206), (56, 368748), (63, 327776), (72, 286804), (84, 245832), (96, 215103), (112, 184374), (126, 163888), (144, 143402), (168, 122916), (224, 92187), (252, 81944), (288, 71701), (336, 61458), (504, 40972), (672, 30729), (1008, 20486), (2016, 10243)]