21790706

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:159

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 20234254

約数列:

[1, 2, 7, 14, 23, 31, 37, 46, 59, 62, 74, 118, 161, 217, 259, 322, 413, 434, 518, 713, 826, 851, 1147, 1357, 1426, 1702, 1829, 2183, 2294, 2714, 3658, 4366, 4991, 5957, 8029, 9499, 9982, 11914, 12803, 15281, 16058, 18998, 25606, 26381, 30562, 42067, 50209, 52762, 67673, 84134, 100418, 135346, 184667, 294469, 351463, 369334, 473711, 588938, 702926, 947422, 1556479, 3112958, 10895353, 21790706]

約数ペア:

[(1, 21790706), (2, 10895353), (7, 3112958), (14, 1556479), (23, 947422), (31, 702926), (37, 588938), (46, 473711), (59, 369334), (62, 351463), (74, 294469), (118, 184667), (161, 135346), (217, 100418), (259, 84134), (322, 67673), (413, 52762), (434, 50209), (518, 42067), (713, 30562), (826, 26381), (851, 25606), (1147, 18998), (1357, 16058), (1426, 15281), (1702, 12803), (1829, 11914), (2183, 9982), (2294, 9499), (2714, 8029), (3658, 5957), (4366, 4991)]