21713835

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 41803776

約数和(自身を除く): 20089941

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 53, 55, 65, 143, 159, 165, 191, 195, 265, 429, 573, 583, 689, 715, 795, 955, 1749, 2067, 2101, 2145, 2483, 2865, 2915, 3445, 6303, 7449, 7579, 8745, 10123, 10335, 10505, 12415, 22737, 27313, 30369, 31515, 37245, 37895, 50615, 81939, 111353, 113685, 131599, 136565, 151845, 334059, 394797, 409695, 556765, 657995, 1447589, 1670295, 1973985, 4342767, 7237945, 21713835]

約数ペア:

[(1, 21713835), (3, 7237945), (5, 4342767), (11, 1973985), (13, 1670295), (15, 1447589), (33, 657995), (39, 556765), (53, 409695), (55, 394797), (65, 334059), (143, 151845), (159, 136565), (165, 131599), (191, 113685), (195, 111353), (265, 81939), (429, 50615), (573, 37895), (583, 37245), (689, 31515), (715, 30369), (795, 27313), (955, 22737), (1749, 12415), (2067, 10505), (2101, 10335), (2145, 10123), (2483, 8745), (2865, 7579), (2915, 7449), (3445, 6303)]