19981170

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20183}}^1$

素因数の和:20207

約数の個数: 48

約数和(自身を含む): 56676672

約数和(自身を除く): 36695502

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20183, 40366, 60549, 100915, 121098, 181647, 201830, 222013, 302745, 363294, 444026, 605490, 666039, 908235, 1110065, 1332078, 1816470, 1998117, 2220130, 3330195, 3996234, 6660390, 9990585, 19981170]

約数ペア:

[(1, 19981170), (2, 9990585), (3, 6660390), (5, 3996234), (6, 3330195), (9, 2220130), (10, 1998117), (11, 1816470), (15, 1332078), (18, 1110065), (22, 908235), (30, 666039), (33, 605490), (45, 444026), (55, 363294), (66, 302745), (90, 222013), (99, 201830), (110, 181647), (165, 121098), (198, 100915), (330, 60549), (495, 40366), (990, 20183)]