21892665

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 38223360

約数和(自身を除く): 16330695

約数列:

[1, 3, 5, 15, 23, 31, 69, 89, 93, 115, 155, 267, 345, 445, 465, 529, 713, 1335, 1587, 2047, 2139, 2645, 2759, 3565, 6141, 7935, 8277, 10235, 10695, 13795, 16399, 30705, 41385, 47081, 49197, 63457, 81995, 141243, 190371, 235405, 245985, 317285, 706215, 951855, 1459511, 4378533, 7297555, 21892665]

約数ペア:

[(1, 21892665), (3, 7297555), (5, 4378533), (15, 1459511), (23, 951855), (31, 706215), (69, 317285), (89, 245985), (93, 235405), (115, 190371), (155, 141243), (267, 81995), (345, 63457), (445, 49197), (465, 47081), (529, 41385), (713, 30705), (1335, 16399), (1587, 13795), (2047, 10695), (2139, 10235), (2645, 8277), (2759, 7935), (3565, 6141)]