21126840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3593}}^1$

素因数の和:3621

約数の個数: 96

約数和(自身を含む): 73748880

約数和(自身を除く): 52622040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 3593, 5880, 7186, 10779, 14372, 17965, 21558, 25151, 28744, 35930, 43116, 50302, 53895, 71860, 75453, 86232, 100604, 107790, 125755, 143720, 150906, 176057, 201208, 215580, 251510, 301812, 352114, 377265, 431160, 503020, 528171, 603624, 704228, 754530, 880285, 1006040, 1056342, 1408456, 1509060, 1760570, 2112684, 2640855, 3018120, 3521140, 4225368, 5281710, 7042280, 10563420, 21126840]

約数ペア:

[(1, 21126840), (2, 10563420), (3, 7042280), (4, 5281710), (5, 4225368), (6, 3521140), (7, 3018120), (8, 2640855), (10, 2112684), (12, 1760570), (14, 1509060), (15, 1408456), (20, 1056342), (21, 1006040), (24, 880285), (28, 754530), (30, 704228), (35, 603624), (40, 528171), (42, 503020), (49, 431160), (56, 377265), (60, 352114), (70, 301812), (84, 251510), (98, 215580), (105, 201208), (120, 176057), (140, 150906), (147, 143720), (168, 125755), (196, 107790), (210, 100604), (245, 86232), (280, 75453), (294, 71860), (392, 53895), (420, 50302), (490, 43116), (588, 35930), (735, 28744), (840, 25151), (980, 21558), (1176, 17965), (1470, 14372), (1960, 10779), (2940, 7186), (3593, 5880)]