21023900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 72

約数和(自身を含む): 49215600

約数和(自身を除く): 28191700

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 83, 85, 100, 149, 166, 170, 298, 332, 340, 415, 425, 596, 745, 830, 850, 1411, 1490, 1660, 1700, 2075, 2533, 2822, 2980, 3725, 4150, 5066, 5644, 7055, 7450, 8300, 10132, 12367, 12665, 14110, 14900, 24734, 25330, 28220, 35275, 49468, 50660, 61835, 63325, 70550, 123670, 126650, 141100, 210239, 247340, 253300, 309175, 420478, 618350, 840956, 1051195, 1236700, 2102390, 4204780, 5255975, 10511950, 21023900]

約数ペア:

[(1, 21023900), (2, 10511950), (4, 5255975), (5, 4204780), (10, 2102390), (17, 1236700), (20, 1051195), (25, 840956), (34, 618350), (50, 420478), (68, 309175), (83, 253300), (85, 247340), (100, 210239), (149, 141100), (166, 126650), (170, 123670), (298, 70550), (332, 63325), (340, 61835), (415, 50660), (425, 49468), (596, 35275), (745, 28220), (830, 25330), (850, 24734), (1411, 14900), (1490, 14110), (1660, 12665), (1700, 12367), (2075, 10132), (2533, 8300), (2822, 7450), (2980, 7055), (3725, 5644), (4150, 5066)]