21940352

素因数分解:

$2^7\times 7^1\times {\mathrm{47}}^1\times {\mathrm{521}}^1$

素因数の和:589

約数の個数: 64

約数和(自身を含む): 51114240

約数和(自身を除く): 29173888

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 64, 94, 112, 128, 188, 224, 329, 376, 448, 521, 658, 752, 896, 1042, 1316, 1504, 2084, 2632, 3008, 3647, 4168, 5264, 6016, 7294, 8336, 10528, 14588, 16672, 21056, 24487, 29176, 33344, 42112, 48974, 58352, 66688, 97948, 116704, 171409, 195896, 233408, 342818, 391792, 466816, 685636, 783584, 1371272, 1567168, 2742544, 3134336, 5485088, 10970176, 21940352]

約数ペア:

[(1, 21940352), (2, 10970176), (4, 5485088), (7, 3134336), (8, 2742544), (14, 1567168), (16, 1371272), (28, 783584), (32, 685636), (47, 466816), (56, 391792), (64, 342818), (94, 233408), (112, 195896), (128, 171409), (188, 116704), (224, 97948), (329, 66688), (376, 58352), (448, 48974), (521, 42112), (658, 33344), (752, 29176), (896, 24487), (1042, 21056), (1316, 16672), (1504, 14588), (2084, 10528), (2632, 8336), (3008, 7294), (3647, 6016), (4168, 5264)]