18886912

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 43414560

約数和(自身を除く): 24527648

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 128, 152, 176, 209, 256, 304, 352, 353, 418, 608, 704, 706, 836, 1216, 1408, 1412, 1672, 2432, 2816, 2824, 3344, 3883, 4864, 5648, 6688, 6707, 7766, 11296, 13376, 13414, 15532, 22592, 26752, 26828, 31064, 45184, 53504, 53656, 62128, 73777, 90368, 107312, 124256, 147554, 214624, 248512, 295108, 429248, 497024, 590216, 858496, 994048, 1180432, 1716992, 2360864, 4721728, 9443456, 18886912]

約数ペア:

[(1, 18886912), (2, 9443456), (4, 4721728), (8, 2360864), (11, 1716992), (16, 1180432), (19, 994048), (22, 858496), (32, 590216), (38, 497024), (44, 429248), (64, 295108), (76, 248512), (88, 214624), (128, 147554), (152, 124256), (176, 107312), (209, 90368), (256, 73777), (304, 62128), (352, 53656), (353, 53504), (418, 45184), (608, 31064), (704, 26828), (706, 26752), (836, 22592), (1216, 15532), (1408, 13414), (1412, 13376), (1672, 11296), (2432, 7766), (2816, 6707), (2824, 6688), (3344, 5648), (3883, 4864)]