21196440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{607}}^1$

素因数の和:721

約数の個数: 96

約数和(自身を含む): 69713280

約数和(自身を除く): 48516840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 97, 120, 180, 194, 291, 360, 388, 485, 582, 607, 776, 873, 970, 1164, 1214, 1455, 1746, 1821, 1940, 2328, 2428, 2910, 3035, 3492, 3642, 3880, 4365, 4856, 5463, 5820, 6070, 6984, 7284, 8730, 9105, 10926, 11640, 12140, 14568, 17460, 18210, 21852, 24280, 27315, 34920, 36420, 43704, 54630, 58879, 72840, 109260, 117758, 176637, 218520, 235516, 294395, 353274, 471032, 529911, 588790, 706548, 883185, 1059822, 1177580, 1413096, 1766370, 2119644, 2355160, 2649555, 3532740, 4239288, 5299110, 7065480, 10598220, 21196440]

約数ペア:

[(1, 21196440), (2, 10598220), (3, 7065480), (4, 5299110), (5, 4239288), (6, 3532740), (8, 2649555), (9, 2355160), (10, 2119644), (12, 1766370), (15, 1413096), (18, 1177580), (20, 1059822), (24, 883185), (30, 706548), (36, 588790), (40, 529911), (45, 471032), (60, 353274), (72, 294395), (90, 235516), (97, 218520), (120, 176637), (180, 117758), (194, 109260), (291, 72840), (360, 58879), (388, 54630), (485, 43704), (582, 36420), (607, 34920), (776, 27315), (873, 24280), (970, 21852), (1164, 18210), (1214, 17460), (1455, 14568), (1746, 12140), (1821, 11640), (1940, 10926), (2328, 9105), (2428, 8730), (2910, 7284), (3035, 6984), (3492, 6070), (3642, 5820), (3880, 5463), (4365, 4856)]