21988956

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 38974884

約数列:

[1, 2, 3, 4, 6, 11, 12, 17, 22, 33, 34, 41, 44, 51, 66, 68, 82, 102, 123, 132, 164, 187, 204, 239, 246, 374, 451, 478, 492, 561, 697, 717, 748, 902, 956, 1122, 1353, 1394, 1434, 1804, 2091, 2244, 2629, 2706, 2788, 2868, 4063, 4182, 5258, 5412, 7667, 7887, 8126, 8364, 9799, 10516, 12189, 15334, 15774, 16252, 19598, 23001, 24378, 29397, 30668, 31548, 39196, 44693, 46002, 48756, 58794, 89386, 92004, 107789, 117588, 134079, 166583, 178772, 215578, 268158, 323367, 333166, 431156, 499749, 536316, 646734, 666332, 999498, 1293468, 1832413, 1998996, 3664826, 5497239, 7329652, 10994478, 21988956]

約数ペア:

[(1, 21988956), (2, 10994478), (3, 7329652), (4, 5497239), (6, 3664826), (11, 1998996), (12, 1832413), (17, 1293468), (22, 999498), (33, 666332), (34, 646734), (41, 536316), (44, 499749), (51, 431156), (66, 333166), (68, 323367), (82, 268158), (102, 215578), (123, 178772), (132, 166583), (164, 134079), (187, 117588), (204, 107789), (239, 92004), (246, 89386), (374, 58794), (451, 48756), (478, 46002), (492, 44693), (561, 39196), (697, 31548), (717, 30668), (748, 29397), (902, 24378), (956, 23001), (1122, 19598), (1353, 16252), (1394, 15774), (1434, 15334), (1804, 12189), (2091, 10516), (2244, 9799), (2629, 8364), (2706, 8126), (2788, 7887), (2868, 7667), (4063, 5412), (4182, 5258)]