21557856

素因数分解:

$2^5\times 3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:308

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 39405984

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 48, 53, 57, 76, 96, 106, 114, 152, 159, 212, 223, 228, 304, 318, 424, 446, 456, 608, 636, 669, 848, 892, 912, 1007, 1272, 1338, 1696, 1784, 1824, 2014, 2544, 2676, 3021, 3568, 4028, 4237, 5088, 5352, 6042, 7136, 8056, 8474, 10704, 11819, 12084, 12711, 16112, 16948, 21408, 23638, 24168, 25422, 32224, 33896, 35457, 47276, 48336, 50844, 67792, 70914, 94552, 96672, 101688, 135584, 141828, 189104, 203376, 224561, 283656, 378208, 406752, 449122, 567312, 673683, 898244, 1134624, 1347366, 1796488, 2694732, 3592976, 5389464, 7185952, 10778928, 21557856]

約数ペア:

[(1, 21557856), (2, 10778928), (3, 7185952), (4, 5389464), (6, 3592976), (8, 2694732), (12, 1796488), (16, 1347366), (19, 1134624), (24, 898244), (32, 673683), (38, 567312), (48, 449122), (53, 406752), (57, 378208), (76, 283656), (96, 224561), (106, 203376), (114, 189104), (152, 141828), (159, 135584), (212, 101688), (223, 96672), (228, 94552), (304, 70914), (318, 67792), (424, 50844), (446, 48336), (456, 47276), (608, 35457), (636, 33896), (669, 32224), (848, 25422), (892, 24168), (912, 23638), (1007, 21408), (1272, 16948), (1338, 16112), (1696, 12711), (1784, 12084), (1824, 11819), (2014, 10704), (2544, 8474), (2676, 8056), (3021, 7136), (3568, 6042), (4028, 5352), (4237, 5088)]