21025400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:549

約数の個数: 96

約数和(自身を含む): 56246400

約数和(自身を除く): 35221000

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 25, 38, 40, 44, 50, 55, 76, 88, 95, 100, 110, 152, 190, 200, 209, 220, 275, 380, 418, 440, 475, 503, 550, 760, 836, 950, 1006, 1045, 1100, 1672, 1900, 2012, 2090, 2200, 2515, 3800, 4024, 4180, 5030, 5225, 5533, 8360, 9557, 10060, 10450, 11066, 12575, 19114, 20120, 20900, 22132, 25150, 27665, 38228, 41800, 44264, 47785, 50300, 55330, 76456, 95570, 100600, 105127, 110660, 138325, 191140, 210254, 221320, 238925, 276650, 382280, 420508, 477850, 525635, 553300, 841016, 955700, 1051270, 1106600, 1911400, 2102540, 2628175, 4205080, 5256350, 10512700, 21025400]

約数ペア:

[(1, 21025400), (2, 10512700), (4, 5256350), (5, 4205080), (8, 2628175), (10, 2102540), (11, 1911400), (19, 1106600), (20, 1051270), (22, 955700), (25, 841016), (38, 553300), (40, 525635), (44, 477850), (50, 420508), (55, 382280), (76, 276650), (88, 238925), (95, 221320), (100, 210254), (110, 191140), (152, 138325), (190, 110660), (200, 105127), (209, 100600), (220, 95570), (275, 76456), (380, 55330), (418, 50300), (440, 47785), (475, 44264), (503, 41800), (550, 38228), (760, 27665), (836, 25150), (950, 22132), (1006, 20900), (1045, 20120), (1100, 19114), (1672, 12575), (1900, 11066), (2012, 10450), (2090, 10060), (2200, 9557), (2515, 8360), (3800, 5533), (4024, 5225), (4180, 5030)]