16666468

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 37895424

約数和(自身を除く): 21228956

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 91, 98, 124, 182, 196, 211, 217, 364, 403, 422, 434, 637, 806, 844, 868, 1274, 1477, 1519, 1612, 2548, 2743, 2821, 2954, 3038, 5486, 5642, 5908, 6076, 6541, 10339, 10972, 11284, 13082, 19201, 19747, 20678, 26164, 38402, 39494, 41356, 45787, 76804, 78988, 85033, 91574, 134407, 170066, 183148, 268814, 320509, 340132, 537628, 595231, 641018, 1190462, 1282036, 2380924, 4166617, 8333234, 16666468]

約数ペア:

[(1, 16666468), (2, 8333234), (4, 4166617), (7, 2380924), (13, 1282036), (14, 1190462), (26, 641018), (28, 595231), (31, 537628), (49, 340132), (52, 320509), (62, 268814), (91, 183148), (98, 170066), (124, 134407), (182, 91574), (196, 85033), (211, 78988), (217, 76804), (364, 45787), (403, 41356), (422, 39494), (434, 38402), (637, 26164), (806, 20678), (844, 19747), (868, 19201), (1274, 13082), (1477, 11284), (1519, 10972), (1612, 10339), (2548, 6541), (2743, 6076), (2821, 5908), (2954, 5642), (3038, 5486)]