19676565

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^3\times {\mathrm{89}}^1$

素因数の和:151

約数の個数: 48

約数和(自身を含む): 36644400

約数和(自身を除く): 16967835

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 89, 153, 255, 267, 289, 445, 765, 801, 867, 1335, 1445, 1513, 2601, 4005, 4335, 4539, 4913, 7565, 13005, 13617, 14739, 22695, 24565, 25721, 44217, 68085, 73695, 77163, 128605, 221085, 231489, 385815, 437257, 1157445, 1311771, 2186285, 3935313, 6558855, 19676565]

約数ペア:

[(1, 19676565), (3, 6558855), (5, 3935313), (9, 2186285), (15, 1311771), (17, 1157445), (45, 437257), (51, 385815), (85, 231489), (89, 221085), (153, 128605), (255, 77163), (267, 73695), (289, 68085), (445, 44217), (765, 25721), (801, 24565), (867, 22695), (1335, 14739), (1445, 13617), (1513, 13005), (2601, 7565), (4005, 4913), (4335, 4539)]