20911776

素因数分解:

$2^5\times 3^1\times {\mathrm{61}}^1\times {\mathrm{3571}}^1$

素因数の和:3645

約数の個数: 48

約数和(自身を含む): 55808928

約数和(自身を除く): 34897152

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 61, 96, 122, 183, 244, 366, 488, 732, 976, 1464, 1952, 2928, 3571, 5856, 7142, 10713, 14284, 21426, 28568, 42852, 57136, 85704, 114272, 171408, 217831, 342816, 435662, 653493, 871324, 1306986, 1742648, 2613972, 3485296, 5227944, 6970592, 10455888, 20911776]

約数ペア:

[(1, 20911776), (2, 10455888), (3, 6970592), (4, 5227944), (6, 3485296), (8, 2613972), (12, 1742648), (16, 1306986), (24, 871324), (32, 653493), (48, 435662), (61, 342816), (96, 217831), (122, 171408), (183, 114272), (244, 85704), (366, 57136), (488, 42852), (732, 28568), (976, 21426), (1464, 14284), (1952, 10713), (2928, 7142), (3571, 5856)]