20520972

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^1\times {\mathrm{11177}}^1$

素因数の和:11207

約数の個数: 48

約数和(自身を含む): 56337120

約数和(自身を除く): 35816148

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 102, 108, 153, 204, 306, 459, 612, 918, 1836, 11177, 22354, 33531, 44708, 67062, 100593, 134124, 190009, 201186, 301779, 380018, 402372, 570027, 603558, 760036, 1140054, 1207116, 1710081, 2280108, 3420162, 5130243, 6840324, 10260486, 20520972]

約数ペア:

[(1, 20520972), (2, 10260486), (3, 6840324), (4, 5130243), (6, 3420162), (9, 2280108), (12, 1710081), (17, 1207116), (18, 1140054), (27, 760036), (34, 603558), (36, 570027), (51, 402372), (54, 380018), (68, 301779), (102, 201186), (108, 190009), (153, 134124), (204, 100593), (306, 67062), (459, 44708), (612, 33531), (918, 22354), (1836, 11177)]