20624982

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{73}}^1$

素因数の和:154

約数の個数: 72

約数和(自身を含む): 50261688

約数和(自身を除く): 29636706

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 49, 62, 73, 93, 98, 146, 147, 186, 217, 219, 294, 434, 438, 511, 651, 961, 1022, 1302, 1519, 1533, 1922, 2263, 2883, 3038, 3066, 3577, 4526, 4557, 5766, 6727, 6789, 7154, 9114, 10731, 13454, 13578, 15841, 20181, 21462, 31682, 40362, 47089, 47523, 70153, 94178, 95046, 110887, 140306, 141267, 210459, 221774, 282534, 332661, 420918, 491071, 665322, 982142, 1473213, 2946426, 3437497, 6874994, 10312491, 20624982]

約数ペア:

[(1, 20624982), (2, 10312491), (3, 6874994), (6, 3437497), (7, 2946426), (14, 1473213), (21, 982142), (31, 665322), (42, 491071), (49, 420918), (62, 332661), (73, 282534), (93, 221774), (98, 210459), (146, 141267), (147, 140306), (186, 110887), (217, 95046), (219, 94178), (294, 70153), (434, 47523), (438, 47089), (511, 40362), (651, 31682), (961, 21462), (1022, 20181), (1302, 15841), (1519, 13578), (1533, 13454), (1922, 10731), (2263, 9114), (2883, 7154), (3038, 6789), (3066, 6727), (3577, 5766), (4526, 4557)]