21377538

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:480

約数の個数: 96

約数和(自身を含む): 58985472

約数和(自身を除く): 37607934

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 31, 39, 42, 62, 63, 78, 91, 93, 117, 126, 182, 186, 217, 234, 273, 279, 403, 421, 434, 546, 558, 651, 806, 819, 842, 1209, 1263, 1302, 1638, 1953, 2418, 2526, 2821, 2947, 3627, 3789, 3906, 5473, 5642, 5894, 7254, 7578, 8463, 8841, 10946, 13051, 16419, 16926, 17682, 25389, 26102, 26523, 32838, 38311, 39153, 49257, 50778, 53046, 76622, 78306, 91357, 98514, 114933, 117459, 169663, 182714, 229866, 234918, 274071, 339326, 344799, 508989, 548142, 689598, 822213, 1017978, 1187641, 1526967, 1644426, 2375282, 3053934, 3562923, 7125846, 10688769, 21377538]

約数ペア:

[(1, 21377538), (2, 10688769), (3, 7125846), (6, 3562923), (7, 3053934), (9, 2375282), (13, 1644426), (14, 1526967), (18, 1187641), (21, 1017978), (26, 822213), (31, 689598), (39, 548142), (42, 508989), (62, 344799), (63, 339326), (78, 274071), (91, 234918), (93, 229866), (117, 182714), (126, 169663), (182, 117459), (186, 114933), (217, 98514), (234, 91357), (273, 78306), (279, 76622), (403, 53046), (421, 50778), (434, 49257), (546, 39153), (558, 38311), (651, 32838), (806, 26523), (819, 26102), (842, 25389), (1209, 17682), (1263, 16926), (1302, 16419), (1638, 13051), (1953, 10946), (2418, 8841), (2526, 8463), (2821, 7578), (2947, 7254), (3627, 5894), (3789, 5642), (3906, 5473)]