19919648

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5231}}^1$

素因数の和:5265

約数の個数: 48

約数和(自身を含む): 47464704

約数和(自身を除く): 27545056

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 68, 112, 119, 136, 224, 238, 272, 476, 544, 952, 1904, 3808, 5231, 10462, 20924, 36617, 41848, 73234, 83696, 88927, 146468, 167392, 177854, 292936, 355708, 585872, 622489, 711416, 1171744, 1244978, 1422832, 2489956, 2845664, 4979912, 9959824, 19919648]

約数ペア:

[(1, 19919648), (2, 9959824), (4, 4979912), (7, 2845664), (8, 2489956), (14, 1422832), (16, 1244978), (17, 1171744), (28, 711416), (32, 622489), (34, 585872), (56, 355708), (68, 292936), (112, 177854), (119, 167392), (136, 146468), (224, 88927), (238, 83696), (272, 73234), (476, 41848), (544, 36617), (952, 20924), (1904, 10462), (3808, 5231)]