21403944

素因数分解:

$2^3\times 3^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:215

約数の個数: 96

約数和(自身を含む): 60652800

約数和(自身を除く): 39248856

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 53, 71, 72, 79, 106, 142, 158, 159, 212, 213, 237, 284, 316, 318, 424, 426, 474, 477, 568, 632, 636, 639, 711, 852, 948, 954, 1272, 1278, 1422, 1704, 1896, 1908, 2556, 2844, 3763, 3816, 4187, 5112, 5609, 5688, 7526, 8374, 11218, 11289, 12561, 15052, 16748, 16827, 22436, 22578, 25122, 30104, 33496, 33654, 33867, 37683, 44872, 45156, 50244, 50481, 67308, 67734, 75366, 90312, 100488, 100962, 134616, 135468, 150732, 201924, 270936, 297277, 301464, 403848, 594554, 891831, 1189108, 1783662, 2378216, 2675493, 3567324, 5350986, 7134648, 10701972, 21403944]

約数ペア:

[(1, 21403944), (2, 10701972), (3, 7134648), (4, 5350986), (6, 3567324), (8, 2675493), (9, 2378216), (12, 1783662), (18, 1189108), (24, 891831), (36, 594554), (53, 403848), (71, 301464), (72, 297277), (79, 270936), (106, 201924), (142, 150732), (158, 135468), (159, 134616), (212, 100962), (213, 100488), (237, 90312), (284, 75366), (316, 67734), (318, 67308), (424, 50481), (426, 50244), (474, 45156), (477, 44872), (568, 37683), (632, 33867), (636, 33654), (639, 33496), (711, 30104), (852, 25122), (948, 22578), (954, 22436), (1272, 16827), (1278, 16748), (1422, 15052), (1704, 12561), (1896, 11289), (1908, 11218), (2556, 8374), (2844, 7526), (3763, 5688), (3816, 5609), (4187, 5112)]