21195018

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1709}}^1$

素因数の和:1783

約数の個数: 48

約数和(自身を含む): 50417640

約数和(自身を除く): 29222622

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 53, 78, 106, 117, 159, 234, 318, 477, 689, 954, 1378, 1709, 2067, 3418, 4134, 5127, 6201, 10254, 12402, 15381, 22217, 30762, 44434, 66651, 90577, 133302, 181154, 199953, 271731, 399906, 543462, 815193, 1177501, 1630386, 2355002, 3532503, 7065006, 10597509, 21195018]

約数ペア:

[(1, 21195018), (2, 10597509), (3, 7065006), (6, 3532503), (9, 2355002), (13, 1630386), (18, 1177501), (26, 815193), (39, 543462), (53, 399906), (78, 271731), (106, 199953), (117, 181154), (159, 133302), (234, 90577), (318, 66651), (477, 44434), (689, 30762), (954, 22217), (1378, 15381), (1709, 12402), (2067, 10254), (3418, 6201), (4134, 5127)]