21154144

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3163}}^1$

素因数の和:3203

約数の個数: 48

約数和(自身を含む): 47839680

約数和(自身を除く): 26685536

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 76, 88, 152, 176, 209, 304, 352, 418, 608, 836, 1672, 3163, 3344, 6326, 6688, 12652, 25304, 34793, 50608, 60097, 69586, 101216, 120194, 139172, 240388, 278344, 480776, 556688, 661067, 961552, 1113376, 1322134, 1923104, 2644268, 5288536, 10577072, 21154144]

約数ペア:

[(1, 21154144), (2, 10577072), (4, 5288536), (8, 2644268), (11, 1923104), (16, 1322134), (19, 1113376), (22, 961552), (32, 661067), (38, 556688), (44, 480776), (76, 278344), (88, 240388), (152, 139172), (176, 120194), (209, 101216), (304, 69586), (352, 60097), (418, 50608), (608, 34793), (836, 25304), (1672, 12652), (3163, 6688), (3344, 6326)]