21542808

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:449

約数の個数: 128

約数和(自身を含む): 68774400

約数和(自身を除く): 47231592

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 19, 21, 24, 28, 34, 38, 42, 51, 56, 57, 68, 76, 84, 102, 114, 119, 133, 136, 152, 168, 204, 228, 238, 266, 323, 357, 397, 399, 408, 456, 476, 532, 646, 714, 794, 798, 952, 969, 1064, 1191, 1292, 1428, 1588, 1596, 1938, 2261, 2382, 2584, 2779, 2856, 3176, 3192, 3876, 4522, 4764, 5558, 6749, 6783, 7543, 7752, 8337, 9044, 9528, 11116, 13498, 13566, 15086, 16674, 18088, 20247, 22232, 22629, 26996, 27132, 30172, 33348, 40494, 45258, 47243, 52801, 53992, 54264, 60344, 66696, 80988, 90516, 94486, 105602, 128231, 141729, 158403, 161976, 181032, 188972, 211204, 256462, 283458, 316806, 377944, 384693, 422408, 512924, 566916, 633612, 769386, 897617, 1025848, 1133832, 1267224, 1538772, 1795234, 2692851, 3077544, 3590468, 5385702, 7180936, 10771404, 21542808]

約数ペア:

[(1, 21542808), (2, 10771404), (3, 7180936), (4, 5385702), (6, 3590468), (7, 3077544), (8, 2692851), (12, 1795234), (14, 1538772), (17, 1267224), (19, 1133832), (21, 1025848), (24, 897617), (28, 769386), (34, 633612), (38, 566916), (42, 512924), (51, 422408), (56, 384693), (57, 377944), (68, 316806), (76, 283458), (84, 256462), (102, 211204), (114, 188972), (119, 181032), (133, 161976), (136, 158403), (152, 141729), (168, 128231), (204, 105602), (228, 94486), (238, 90516), (266, 80988), (323, 66696), (357, 60344), (397, 54264), (399, 53992), (408, 52801), (456, 47243), (476, 45258), (532, 40494), (646, 33348), (714, 30172), (794, 27132), (798, 26996), (952, 22629), (969, 22232), (1064, 20247), (1191, 18088), (1292, 16674), (1428, 15086), (1588, 13566), (1596, 13498), (1938, 11116), (2261, 9528), (2382, 9044), (2584, 8337), (2779, 7752), (2856, 7543), (3176, 6783), (3192, 6749), (3876, 5558), (4522, 4764)]