21418028

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{3539}}^1$

素因数の和:3649

約数の個数: 24

約数和(自身を含む): 40143600

約数和(自身を除く): 18725572

約数列:

[1, 2, 4, 17, 34, 68, 89, 178, 356, 1513, 3026, 3539, 6052, 7078, 14156, 60163, 120326, 240652, 314971, 629942, 1259884, 5354507, 10709014, 21418028]

約数ペア:

[(1, 21418028), (2, 10709014), (4, 5354507), (17, 1259884), (34, 629942), (68, 314971), (89, 240652), (178, 120326), (356, 60163), (1513, 14156), (3026, 7078), (3539, 6052)]