20999376

素因数分解:

$2^4\times 3^2\times {\mathrm{145829}}^1$

素因数の和:145843

約数の個数: 30

約数和(自身を含む): 58769490

約数和(自身を除く): 37770114

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 145829, 291658, 437487, 583316, 874974, 1166632, 1312461, 1749948, 2333264, 2624922, 3499896, 5249844, 6999792, 10499688, 20999376]

約数ペア:

[(1, 20999376), (2, 10499688), (3, 6999792), (4, 5249844), (6, 3499896), (8, 2624922), (9, 2333264), (12, 1749948), (16, 1312461), (18, 1166632), (24, 874974), (36, 583316), (48, 437487), (72, 291658), (144, 145829)]