21435680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19139}}^1$

素因数の和:19161

約数の個数: 48

約数和(自身を含む): 57879360

約数和(自身を除く): 36443680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 19139, 38278, 76556, 95695, 133973, 153112, 191390, 267946, 306224, 382780, 535892, 612448, 669865, 765560, 1071784, 1339730, 1531120, 2143568, 2679460, 3062240, 4287136, 5358920, 10717840, 21435680]

約数ペア:

[(1, 21435680), (2, 10717840), (4, 5358920), (5, 4287136), (7, 3062240), (8, 2679460), (10, 2143568), (14, 1531120), (16, 1339730), (20, 1071784), (28, 765560), (32, 669865), (35, 612448), (40, 535892), (56, 382780), (70, 306224), (80, 267946), (112, 191390), (140, 153112), (160, 133973), (224, 95695), (280, 76556), (560, 38278), (1120, 19139)]