21508400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{3163}}^1$

素因数の和:3198

約数の個数: 60

約数和(自身を含む): 54730872

約数和(自身を除く): 33222472

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 3163, 3400, 6326, 6800, 12652, 15815, 25304, 31630, 50608, 53771, 63260, 79075, 107542, 126520, 158150, 215084, 253040, 268855, 316300, 430168, 537710, 632600, 860336, 1075420, 1265200, 1344275, 2150840, 2688550, 4301680, 5377100, 10754200, 21508400]

約数ペア:

[(1, 21508400), (2, 10754200), (4, 5377100), (5, 4301680), (8, 2688550), (10, 2150840), (16, 1344275), (17, 1265200), (20, 1075420), (25, 860336), (34, 632600), (40, 537710), (50, 430168), (68, 316300), (80, 268855), (85, 253040), (100, 215084), (136, 158150), (170, 126520), (200, 107542), (272, 79075), (340, 63260), (400, 53771), (425, 50608), (680, 31630), (850, 25304), (1360, 15815), (1700, 12652), (3163, 6800), (3400, 6326)]