21521300

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 50413440

約数和(自身を除く): 28892140

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 47, 50, 76, 94, 95, 100, 188, 190, 235, 241, 380, 470, 475, 482, 893, 940, 950, 964, 1175, 1205, 1786, 1900, 2350, 2410, 3572, 4465, 4579, 4700, 4820, 6025, 8930, 9158, 11327, 12050, 17860, 18316, 22325, 22654, 22895, 24100, 44650, 45308, 45790, 56635, 89300, 91580, 113270, 114475, 215213, 226540, 228950, 283175, 430426, 457900, 566350, 860852, 1076065, 1132700, 2152130, 4304260, 5380325, 10760650, 21521300]

約数ペア:

[(1, 21521300), (2, 10760650), (4, 5380325), (5, 4304260), (10, 2152130), (19, 1132700), (20, 1076065), (25, 860852), (38, 566350), (47, 457900), (50, 430426), (76, 283175), (94, 228950), (95, 226540), (100, 215213), (188, 114475), (190, 113270), (235, 91580), (241, 89300), (380, 56635), (470, 45790), (475, 45308), (482, 44650), (893, 24100), (940, 22895), (950, 22654), (964, 22325), (1175, 18316), (1205, 17860), (1786, 12050), (1900, 11327), (2350, 9158), (2410, 8930), (3572, 6025), (4465, 4820), (4579, 4700)]