20972808

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{15331}}^1$

素因数の和:15362

約数の個数: 48

約数和(自身を含む): 59794800

約数和(自身を除く): 38821992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 15331, 30662, 45993, 61324, 91986, 122648, 137979, 183972, 275958, 291289, 367944, 551916, 582578, 873867, 1103832, 1165156, 1747734, 2330312, 2621601, 3495468, 5243202, 6990936, 10486404, 20972808]

約数ペア:

[(1, 20972808), (2, 10486404), (3, 6990936), (4, 5243202), (6, 3495468), (8, 2621601), (9, 2330312), (12, 1747734), (18, 1165156), (19, 1103832), (24, 873867), (36, 582578), (38, 551916), (57, 367944), (72, 291289), (76, 275958), (114, 183972), (152, 137979), (171, 122648), (228, 91986), (342, 61324), (456, 45993), (684, 30662), (1368, 15331)]