21230144

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 112

約数和(自身を含む): 51206400

約数和(自身を除く): 29976256

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 32, 34, 38, 52, 64, 68, 76, 79, 104, 136, 152, 158, 208, 221, 247, 272, 304, 316, 323, 416, 442, 494, 544, 608, 632, 646, 832, 884, 988, 1027, 1088, 1216, 1264, 1292, 1343, 1501, 1768, 1976, 2054, 2528, 2584, 2686, 3002, 3536, 3952, 4108, 4199, 5056, 5168, 5372, 6004, 7072, 7904, 8216, 8398, 10336, 10744, 12008, 14144, 15808, 16432, 16796, 17459, 19513, 20672, 21488, 24016, 25517, 32864, 33592, 34918, 39026, 42976, 48032, 51034, 65728, 67184, 69836, 78052, 85952, 96064, 102068, 134368, 139672, 156104, 204136, 268736, 279344, 312208, 331721, 408272, 558688, 624416, 663442, 816544, 1117376, 1248832, 1326884, 1633088, 2653768, 5307536, 10615072, 21230144]

約数ペア:

[(1, 21230144), (2, 10615072), (4, 5307536), (8, 2653768), (13, 1633088), (16, 1326884), (17, 1248832), (19, 1117376), (26, 816544), (32, 663442), (34, 624416), (38, 558688), (52, 408272), (64, 331721), (68, 312208), (76, 279344), (79, 268736), (104, 204136), (136, 156104), (152, 139672), (158, 134368), (208, 102068), (221, 96064), (247, 85952), (272, 78052), (304, 69836), (316, 67184), (323, 65728), (416, 51034), (442, 48032), (494, 42976), (544, 39026), (608, 34918), (632, 33592), (646, 32864), (832, 25517), (884, 24016), (988, 21488), (1027, 20672), (1088, 19513), (1216, 17459), (1264, 16796), (1292, 16432), (1343, 15808), (1501, 14144), (1768, 12008), (1976, 10744), (2054, 10336), (2528, 8398), (2584, 8216), (2686, 7904), (3002, 7072), (3536, 6004), (3952, 5372), (4108, 5168), (4199, 5056)]