21923356

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 49067424

約数和(自身を除く): 27144068

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 52, 82, 91, 113, 164, 169, 182, 226, 287, 338, 364, 452, 533, 574, 676, 791, 1066, 1148, 1183, 1469, 1582, 2132, 2366, 2938, 3164, 3731, 4633, 4732, 5876, 6929, 7462, 9266, 10283, 13858, 14924, 18532, 19097, 20566, 27716, 32431, 38194, 41132, 48503, 60229, 64862, 76388, 97006, 120458, 129724, 133679, 194012, 240916, 267358, 421603, 534716, 782977, 843206, 1565954, 1686412, 3131908, 5480839, 10961678, 21923356]

約数ペア:

[(1, 21923356), (2, 10961678), (4, 5480839), (7, 3131908), (13, 1686412), (14, 1565954), (26, 843206), (28, 782977), (41, 534716), (52, 421603), (82, 267358), (91, 240916), (113, 194012), (164, 133679), (169, 129724), (182, 120458), (226, 97006), (287, 76388), (338, 64862), (364, 60229), (452, 48503), (533, 41132), (574, 38194), (676, 32431), (791, 27716), (1066, 20566), (1148, 19097), (1183, 18532), (1469, 14924), (1582, 13858), (2132, 10283), (2366, 9266), (2938, 7462), (3164, 6929), (3731, 5876), (4633, 4732)]