21559808

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{2477}}^1$

素因数の和:2512

約数の個数: 40

約数和(自身を含む): 45629892

約数和(自身を除く): 24070084

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1088, 2176, 2477, 4352, 4954, 8704, 9908, 19816, 39632, 42109, 79264, 84218, 158528, 168436, 317056, 336872, 634112, 673744, 1268224, 1347488, 2694976, 5389952, 10779904, 21559808]

約数ペア:

[(1, 21559808), (2, 10779904), (4, 5389952), (8, 2694976), (16, 1347488), (17, 1268224), (32, 673744), (34, 634112), (64, 336872), (68, 317056), (128, 168436), (136, 158528), (256, 84218), (272, 79264), (512, 42109), (544, 39632), (1088, 19816), (2176, 9908), (2477, 8704), (4352, 4954)]