18820394

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{587}}^1$

素因数の和:670

約数の個数: 32

約数和(自身を含む): 32006016

約数和(自身を除く): 13185622

約数列:

[1, 2, 17, 23, 34, 41, 46, 82, 391, 587, 697, 782, 943, 1174, 1394, 1886, 9979, 13501, 16031, 19958, 24067, 27002, 32062, 48134, 229517, 409139, 459034, 553541, 818278, 1107082, 9410197, 18820394]

約数ペア:

[(1, 18820394), (2, 9410197), (17, 1107082), (23, 818278), (34, 553541), (41, 459034), (46, 409139), (82, 229517), (391, 48134), (587, 32062), (697, 27002), (782, 24067), (943, 19958), (1174, 16031), (1394, 13501), (1886, 9979)]