21457536

素因数分解:

$2^7\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:226

約数の個数: 128

約数和(自身を含む): 63892800

約数和(自身を除く): 42435264

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 19, 24, 32, 34, 38, 48, 51, 57, 64, 68, 76, 96, 102, 114, 128, 136, 152, 173, 192, 204, 228, 272, 304, 323, 346, 384, 408, 456, 519, 544, 608, 646, 692, 816, 912, 969, 1038, 1088, 1216, 1292, 1384, 1632, 1824, 1938, 2076, 2176, 2432, 2584, 2768, 2941, 3264, 3287, 3648, 3876, 4152, 5168, 5536, 5882, 6528, 6574, 7296, 7752, 8304, 8823, 9861, 10336, 11072, 11764, 13148, 15504, 16608, 17646, 19722, 20672, 22144, 23528, 26296, 31008, 33216, 35292, 39444, 41344, 47056, 52592, 55879, 62016, 66432, 70584, 78888, 94112, 105184, 111758, 124032, 141168, 157776, 167637, 188224, 210368, 223516, 282336, 315552, 335274, 376448, 420736, 447032, 564672, 631104, 670548, 894064, 1129344, 1262208, 1341096, 1788128, 2682192, 3576256, 5364384, 7152512, 10728768, 21457536]

約数ペア:

[(1, 21457536), (2, 10728768), (3, 7152512), (4, 5364384), (6, 3576256), (8, 2682192), (12, 1788128), (16, 1341096), (17, 1262208), (19, 1129344), (24, 894064), (32, 670548), (34, 631104), (38, 564672), (48, 447032), (51, 420736), (57, 376448), (64, 335274), (68, 315552), (76, 282336), (96, 223516), (102, 210368), (114, 188224), (128, 167637), (136, 157776), (152, 141168), (173, 124032), (192, 111758), (204, 105184), (228, 94112), (272, 78888), (304, 70584), (323, 66432), (346, 62016), (384, 55879), (408, 52592), (456, 47056), (519, 41344), (544, 39444), (608, 35292), (646, 33216), (692, 31008), (816, 26296), (912, 23528), (969, 22144), (1038, 20672), (1088, 19722), (1216, 17646), (1292, 16608), (1384, 15504), (1632, 13148), (1824, 11764), (1938, 11072), (2076, 10336), (2176, 9861), (2432, 8823), (2584, 8304), (2768, 7752), (2941, 7296), (3264, 6574), (3287, 6528), (3648, 5882), (3876, 5536), (4152, 5168)]