21438830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 25217170

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 59, 70, 118, 145, 179, 203, 290, 295, 358, 406, 413, 590, 826, 895, 1015, 1253, 1711, 1790, 2030, 2065, 2506, 3422, 4130, 5191, 6265, 8555, 10382, 10561, 11977, 12530, 17110, 21122, 23954, 25955, 36337, 51910, 52805, 59885, 72674, 73927, 105610, 119770, 147854, 181685, 306269, 363370, 369635, 612538, 739270, 1531345, 2143883, 3062690, 4287766, 10719415, 21438830]

約数ペア:

[(1, 21438830), (2, 10719415), (5, 4287766), (7, 3062690), (10, 2143883), (14, 1531345), (29, 739270), (35, 612538), (58, 369635), (59, 363370), (70, 306269), (118, 181685), (145, 147854), (179, 119770), (203, 105610), (290, 73927), (295, 72674), (358, 59885), (406, 52805), (413, 51910), (590, 36337), (826, 25955), (895, 23954), (1015, 21122), (1253, 17110), (1711, 12530), (1790, 11977), (2030, 10561), (2065, 10382), (2506, 8555), (3422, 6265), (4130, 5191)]