20684692

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{659}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 23667308

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 59, 76, 118, 133, 236, 266, 413, 532, 659, 826, 1121, 1318, 1652, 2242, 2636, 4484, 4613, 7847, 9226, 12521, 15694, 18452, 25042, 31388, 38881, 50084, 77762, 87647, 155524, 175294, 272167, 350588, 544334, 738739, 1088668, 1477478, 2954956, 5171173, 10342346, 20684692]

約数ペア:

[(1, 20684692), (2, 10342346), (4, 5171173), (7, 2954956), (14, 1477478), (19, 1088668), (28, 738739), (38, 544334), (59, 350588), (76, 272167), (118, 175294), (133, 155524), (236, 87647), (266, 77762), (413, 50084), (532, 38881), (659, 31388), (826, 25042), (1121, 18452), (1318, 15694), (1652, 12521), (2242, 9226), (2636, 7847), (4484, 4613)]