21345050

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:383

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 20652262

約数列:

[1, 2, 5, 10, 25, 31, 47, 50, 62, 94, 155, 235, 293, 310, 470, 586, 775, 1175, 1457, 1465, 1550, 2350, 2914, 2930, 7285, 7325, 9083, 13771, 14570, 14650, 18166, 27542, 36425, 45415, 68855, 72850, 90830, 137710, 227075, 344275, 426901, 454150, 688550, 853802, 2134505, 4269010, 10672525, 21345050]

約数ペア:

[(1, 21345050), (2, 10672525), (5, 4269010), (10, 2134505), (25, 853802), (31, 688550), (47, 454150), (50, 426901), (62, 344275), (94, 227075), (155, 137710), (235, 90830), (293, 72850), (310, 68855), (470, 45415), (586, 36425), (775, 27542), (1175, 18166), (1457, 14650), (1465, 14570), (1550, 13771), (2350, 9083), (2914, 7325), (2930, 7285)]