21299472

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 120

約数和(自身を含む): 63835200

約数和(自身を除く): 42535728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 46, 48, 59, 69, 72, 92, 109, 118, 138, 144, 177, 184, 207, 218, 236, 276, 327, 354, 368, 414, 436, 472, 531, 552, 654, 708, 828, 872, 944, 981, 1062, 1104, 1308, 1357, 1416, 1656, 1744, 1962, 2124, 2507, 2616, 2714, 2832, 3312, 3924, 4071, 4248, 5014, 5232, 5428, 6431, 7521, 7848, 8142, 8496, 10028, 10856, 12213, 12862, 15042, 15696, 16284, 19293, 20056, 21712, 22563, 24426, 25724, 30084, 32568, 38586, 40112, 45126, 48852, 51448, 57879, 60168, 65136, 77172, 90252, 97704, 102896, 115758, 120336, 147913, 154344, 180504, 195408, 231516, 295826, 308688, 361008, 443739, 463032, 591652, 887478, 926064, 1183304, 1331217, 1774956, 2366608, 2662434, 3549912, 5324868, 7099824, 10649736, 21299472]

約数ペア:

[(1, 21299472), (2, 10649736), (3, 7099824), (4, 5324868), (6, 3549912), (8, 2662434), (9, 2366608), (12, 1774956), (16, 1331217), (18, 1183304), (23, 926064), (24, 887478), (36, 591652), (46, 463032), (48, 443739), (59, 361008), (69, 308688), (72, 295826), (92, 231516), (109, 195408), (118, 180504), (138, 154344), (144, 147913), (177, 120336), (184, 115758), (207, 102896), (218, 97704), (236, 90252), (276, 77172), (327, 65136), (354, 60168), (368, 57879), (414, 51448), (436, 48852), (472, 45126), (531, 40112), (552, 38586), (654, 32568), (708, 30084), (828, 25724), (872, 24426), (944, 22563), (981, 21712), (1062, 20056), (1104, 19293), (1308, 16284), (1357, 15696), (1416, 15042), (1656, 12862), (1744, 12213), (1962, 10856), (2124, 10028), (2507, 8496), (2616, 8142), (2714, 7848), (2832, 7521), (3312, 6431), (3924, 5428), (4071, 5232), (4248, 5014)]