21817290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3889}}^1$

素因数の和:3927

約数の個数: 64

約数和(自身を含む): 60497280

約数和(自身を除く): 38679990

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 17, 22, 30, 33, 34, 51, 55, 66, 85, 102, 110, 165, 170, 187, 255, 330, 374, 510, 561, 935, 1122, 1870, 2805, 3889, 5610, 7778, 11667, 19445, 23334, 38890, 42779, 58335, 66113, 85558, 116670, 128337, 132226, 198339, 213895, 256674, 330565, 396678, 427790, 641685, 661130, 727243, 991695, 1283370, 1454486, 1983390, 2181729, 3636215, 4363458, 7272430, 10908645, 21817290]

約数ペア:

[(1, 21817290), (2, 10908645), (3, 7272430), (5, 4363458), (6, 3636215), (10, 2181729), (11, 1983390), (15, 1454486), (17, 1283370), (22, 991695), (30, 727243), (33, 661130), (34, 641685), (51, 427790), (55, 396678), (66, 330565), (85, 256674), (102, 213895), (110, 198339), (165, 132226), (170, 128337), (187, 116670), (255, 85558), (330, 66113), (374, 58335), (510, 42779), (561, 38890), (935, 23334), (1122, 19445), (1870, 11667), (2805, 7778), (3889, 5610)]