21379770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 58705920

約数和(自身を除く): 37326150

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 79, 90, 93, 97, 155, 158, 186, 194, 237, 279, 291, 310, 395, 465, 474, 485, 558, 582, 711, 790, 873, 930, 970, 1185, 1395, 1422, 1455, 1746, 2370, 2449, 2790, 2910, 3007, 3555, 4365, 4898, 6014, 7110, 7347, 7663, 8730, 9021, 12245, 14694, 15035, 15326, 18042, 22041, 22989, 24490, 27063, 30070, 36735, 38315, 44082, 45105, 45978, 54126, 68967, 73470, 76630, 90210, 110205, 114945, 135315, 137934, 220410, 229890, 237553, 270630, 344835, 475106, 689670, 712659, 1187765, 1425318, 2137977, 2375530, 3563295, 4275954, 7126590, 10689885, 21379770]

約数ペア:

[(1, 21379770), (2, 10689885), (3, 7126590), (5, 4275954), (6, 3563295), (9, 2375530), (10, 2137977), (15, 1425318), (18, 1187765), (30, 712659), (31, 689670), (45, 475106), (62, 344835), (79, 270630), (90, 237553), (93, 229890), (97, 220410), (155, 137934), (158, 135315), (186, 114945), (194, 110205), (237, 90210), (279, 76630), (291, 73470), (310, 68967), (395, 54126), (465, 45978), (474, 45105), (485, 44082), (558, 38315), (582, 36735), (711, 30070), (790, 27063), (873, 24490), (930, 22989), (970, 22041), (1185, 18042), (1395, 15326), (1422, 15035), (1455, 14694), (1746, 12245), (2370, 9021), (2449, 8730), (2790, 7663), (2910, 7347), (3007, 7110), (3555, 6014), (4365, 4898)]