19909026

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:611

約数の個数: 48

約数和(自身を含む): 45110520

約数和(自身を除く): 25201494

約数列:

[1, 2, 3, 6, 9, 18, 41, 53, 82, 106, 123, 159, 246, 318, 369, 477, 509, 738, 954, 1018, 1527, 2173, 3054, 4346, 4581, 6519, 9162, 13038, 19557, 20869, 26977, 39114, 41738, 53954, 62607, 80931, 125214, 161862, 187821, 242793, 375642, 485586, 1106057, 2212114, 3318171, 6636342, 9954513, 19909026]

約数ペア:

[(1, 19909026), (2, 9954513), (3, 6636342), (6, 3318171), (9, 2212114), (18, 1106057), (41, 485586), (53, 375642), (82, 242793), (106, 187821), (123, 161862), (159, 125214), (246, 80931), (318, 62607), (369, 53954), (477, 41738), (509, 39114), (738, 26977), (954, 20869), (1018, 19557), (1527, 13038), (2173, 9162), (3054, 6519), (4346, 4581)]