21797216

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:164

約数の個数: 96

約数和(自身を含む): 52512768

約数和(自身を除く): 30715552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 43, 56, 62, 73, 86, 112, 124, 146, 172, 217, 224, 248, 292, 301, 344, 434, 496, 511, 584, 602, 688, 868, 992, 1022, 1168, 1204, 1333, 1376, 1736, 2044, 2263, 2336, 2408, 2666, 3139, 3472, 4088, 4526, 4816, 5332, 6278, 6944, 8176, 9052, 9331, 9632, 10664, 12556, 15841, 16352, 18104, 18662, 21328, 21973, 25112, 31682, 36208, 37324, 42656, 43946, 50224, 63364, 72416, 74648, 87892, 97309, 100448, 126728, 149296, 175784, 194618, 253456, 298592, 351568, 389236, 506912, 681163, 703136, 778472, 1362326, 1556944, 2724652, 3113888, 5449304, 10898608, 21797216]

約数ペア:

[(1, 21797216), (2, 10898608), (4, 5449304), (7, 3113888), (8, 2724652), (14, 1556944), (16, 1362326), (28, 778472), (31, 703136), (32, 681163), (43, 506912), (56, 389236), (62, 351568), (73, 298592), (86, 253456), (112, 194618), (124, 175784), (146, 149296), (172, 126728), (217, 100448), (224, 97309), (248, 87892), (292, 74648), (301, 72416), (344, 63364), (434, 50224), (496, 43946), (511, 42656), (584, 37324), (602, 36208), (688, 31682), (868, 25112), (992, 21973), (1022, 21328), (1168, 18662), (1204, 18104), (1333, 16352), (1376, 15841), (1736, 12556), (2044, 10664), (2263, 9632), (2336, 9331), (2408, 9052), (2666, 8176), (3139, 6944), (3472, 6278), (4088, 5332), (4526, 4816)]