21463750

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1$

素因数の和:263

約数の個数: 80

約数和(自身を含む): 50383872

約数和(自身を除く): 28920122

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 125, 154, 175, 223, 250, 275, 350, 385, 446, 550, 625, 770, 875, 1115, 1250, 1375, 1561, 1750, 1925, 2230, 2453, 2750, 3122, 3850, 4375, 4906, 5575, 6875, 7805, 8750, 9625, 11150, 12265, 13750, 15610, 17171, 19250, 24530, 27875, 34342, 39025, 48125, 55750, 61325, 78050, 85855, 96250, 122650, 139375, 171710, 195125, 278750, 306625, 390250, 429275, 613250, 858550, 975625, 1533125, 1951250, 2146375, 3066250, 4292750, 10731875, 21463750]

約数ペア:

[(1, 21463750), (2, 10731875), (5, 4292750), (7, 3066250), (10, 2146375), (11, 1951250), (14, 1533125), (22, 975625), (25, 858550), (35, 613250), (50, 429275), (55, 390250), (70, 306625), (77, 278750), (110, 195125), (125, 171710), (154, 139375), (175, 122650), (223, 96250), (250, 85855), (275, 78050), (350, 61325), (385, 55750), (446, 48125), (550, 39025), (625, 34342), (770, 27875), (875, 24530), (1115, 19250), (1250, 17171), (1375, 15610), (1561, 13750), (1750, 12265), (1925, 11150), (2230, 9625), (2453, 8750), (2750, 7805), (3122, 6875), (3850, 5575), (4375, 4906)]