20893395

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 34945344

約数和(自身を除く): 14051949

約数列:

[1, 3, 5, 15, 41, 53, 123, 159, 205, 265, 615, 641, 795, 1923, 2173, 3205, 6519, 9615, 10865, 26281, 32595, 33973, 78843, 101919, 131405, 169865, 394215, 509595, 1392893, 4178679, 6964465, 20893395]

約数ペア:

[(1, 20893395), (3, 6964465), (5, 4178679), (15, 1392893), (41, 509595), (53, 394215), (123, 169865), (159, 131405), (205, 101919), (265, 78843), (615, 33973), (641, 32595), (795, 26281), (1923, 10865), (2173, 9615), (3205, 6519)]