21864220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2647}}^1$

素因数の和:2722

約数の個数: 48

約数和(自身を含む): 53383680

約数和(自身を除く): 31519460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 59, 70, 118, 140, 236, 295, 413, 590, 826, 1180, 1652, 2065, 2647, 4130, 5294, 8260, 10588, 13235, 18529, 26470, 37058, 52940, 74116, 92645, 156173, 185290, 312346, 370580, 624692, 780865, 1093211, 1561730, 2186422, 3123460, 4372844, 5466055, 10932110, 21864220]

約数ペア:

[(1, 21864220), (2, 10932110), (4, 5466055), (5, 4372844), (7, 3123460), (10, 2186422), (14, 1561730), (20, 1093211), (28, 780865), (35, 624692), (59, 370580), (70, 312346), (118, 185290), (140, 156173), (236, 92645), (295, 74116), (413, 52940), (590, 37058), (826, 26470), (1180, 18529), (1652, 13235), (2065, 10588), (2647, 8260), (4130, 5294)]