21040421808

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{620003}}^1$

素因数の和:620122

約数の個数: 80

約数和(自身を含む): 62734484736

約数和(自身を除く): 41694062928

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 101, 112, 168, 202, 303, 336, 404, 606, 707, 808, 1212, 1414, 1616, 2121, 2424, 2828, 4242, 4848, 5656, 8484, 11312, 16968, 33936, 620003, 1240006, 1860009, 2480012, 3720018, 4340021, 4960024, 7440036, 8680042, 9920048, 13020063, 14880072, 17360084, 26040126, 29760144, 34720168, 52080252, 62620303, 69440336, 104160504, 125240606, 187860909, 208321008, 250481212, 375721818, 438342121, 500962424, 751443636, 876684242, 1001924848, 1315026363, 1502887272, 1753368484, 2630052726, 3005774544, 3506736968, 5260105452, 7013473936, 10520210904, 21040421808]

約数ペア:

[(1, 21040421808), (2, 10520210904), (3, 7013473936), (4, 5260105452), (6, 3506736968), (7, 3005774544), (8, 2630052726), (12, 1753368484), (14, 1502887272), (16, 1315026363), (21, 1001924848), (24, 876684242), (28, 751443636), (42, 500962424), (48, 438342121), (56, 375721818), (84, 250481212), (101, 208321008), (112, 187860909), (168, 125240606), (202, 104160504), (303, 69440336), (336, 62620303), (404, 52080252), (606, 34720168), (707, 29760144), (808, 26040126), (1212, 17360084), (1414, 14880072), (1616, 13020063), (2121, 9920048), (2424, 8680042), (2828, 7440036), (4242, 4960024), (4848, 4340021), (5656, 3720018), (8484, 2480012), (11312, 1860009), (16968, 1240006), (33936, 620003)]