17213860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 38619504

約数和(自身を除く): 21405644

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 257, 340, 394, 514, 788, 985, 1028, 1285, 1970, 2570, 3349, 3940, 4369, 5140, 6698, 8738, 13396, 16745, 17476, 21845, 33490, 43690, 50629, 66980, 87380, 101258, 202516, 253145, 506290, 860693, 1012580, 1721386, 3442772, 4303465, 8606930, 17213860]

約数ペア:

[(1, 17213860), (2, 8606930), (4, 4303465), (5, 3442772), (10, 1721386), (17, 1012580), (20, 860693), (34, 506290), (68, 253145), (85, 202516), (170, 101258), (197, 87380), (257, 66980), (340, 50629), (394, 43690), (514, 33490), (788, 21845), (985, 17476), (1028, 16745), (1285, 13396), (1970, 8738), (2570, 6698), (3349, 5140), (3940, 4369)]