21152016

素因数分解:

$2^4\times 3^4\times {\mathrm{19}}^1\times {\mathrm{859}}^1$

素因数の和:898

約数の個数: 100

約数和(自身を含む): 64517200

約数和(自身を除く): 43365184

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 36, 38, 48, 54, 57, 72, 76, 81, 108, 114, 144, 152, 162, 171, 216, 228, 304, 324, 342, 432, 456, 513, 648, 684, 859, 912, 1026, 1296, 1368, 1539, 1718, 2052, 2577, 2736, 3078, 3436, 4104, 5154, 6156, 6872, 7731, 8208, 10308, 12312, 13744, 15462, 16321, 20616, 23193, 24624, 30924, 32642, 41232, 46386, 48963, 61848, 65284, 69579, 92772, 97926, 123696, 130568, 139158, 146889, 185544, 195852, 261136, 278316, 293778, 371088, 391704, 440667, 556632, 587556, 783408, 881334, 1113264, 1175112, 1322001, 1762668, 2350224, 2644002, 3525336, 5288004, 7050672, 10576008, 21152016]

約数ペア:

[(1, 21152016), (2, 10576008), (3, 7050672), (4, 5288004), (6, 3525336), (8, 2644002), (9, 2350224), (12, 1762668), (16, 1322001), (18, 1175112), (19, 1113264), (24, 881334), (27, 783408), (36, 587556), (38, 556632), (48, 440667), (54, 391704), (57, 371088), (72, 293778), (76, 278316), (81, 261136), (108, 195852), (114, 185544), (144, 146889), (152, 139158), (162, 130568), (171, 123696), (216, 97926), (228, 92772), (304, 69579), (324, 65284), (342, 61848), (432, 48963), (456, 46386), (513, 41232), (648, 32642), (684, 30924), (859, 24624), (912, 23193), (1026, 20616), (1296, 16321), (1368, 15462), (1539, 13744), (1718, 12312), (2052, 10308), (2577, 8208), (2736, 7731), (3078, 6872), (3436, 6156), (4104, 5154)]