21860384

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7507}}^1$

素因数の和:7537

約数の個数: 48

約数和(自身を含む): 52976448

約数和(自身を除く): 31116064

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7507, 15014, 30028, 52549, 60056, 97591, 105098, 120112, 195182, 210196, 240224, 390364, 420392, 683137, 780728, 840784, 1366274, 1561456, 1681568, 2732548, 3122912, 5465096, 10930192, 21860384]

約数ペア:

[(1, 21860384), (2, 10930192), (4, 5465096), (7, 3122912), (8, 2732548), (13, 1681568), (14, 1561456), (16, 1366274), (26, 840784), (28, 780728), (32, 683137), (52, 420392), (56, 390364), (91, 240224), (104, 210196), (112, 195182), (182, 120112), (208, 105098), (224, 97591), (364, 60056), (416, 52549), (728, 30028), (1456, 15014), (2912, 7507)]