21486942

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:385

約数の個数: 48

約数和(自身を含む): 48117888

約数和(自身を除く): 26630946

約数列:

[1, 2, 3, 6, 9, 18, 53, 101, 106, 159, 202, 223, 303, 318, 446, 477, 606, 669, 909, 954, 1338, 1818, 2007, 4014, 5353, 10706, 11819, 16059, 22523, 23638, 32118, 35457, 45046, 48177, 67569, 70914, 96354, 106371, 135138, 202707, 212742, 405414, 1193719, 2387438, 3581157, 7162314, 10743471, 21486942]

約数ペア:

[(1, 21486942), (2, 10743471), (3, 7162314), (6, 3581157), (9, 2387438), (18, 1193719), (53, 405414), (101, 212742), (106, 202707), (159, 135138), (202, 106371), (223, 96354), (303, 70914), (318, 67569), (446, 48177), (477, 45046), (606, 35457), (669, 32118), (909, 23638), (954, 22523), (1338, 16059), (1818, 11819), (2007, 10706), (4014, 5353)]