21955356

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:411

約数の個数: 72

約数和(自身を含む): 58260384

約数和(自身を除く): 36305028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 53, 74, 106, 111, 148, 159, 212, 222, 311, 318, 333, 444, 477, 622, 636, 666, 933, 954, 1244, 1332, 1866, 1908, 1961, 2799, 3732, 3922, 5598, 5883, 7844, 11196, 11507, 11766, 16483, 17649, 23014, 23532, 32966, 34521, 35298, 46028, 49449, 65932, 69042, 70596, 98898, 103563, 138084, 148347, 197796, 207126, 296694, 414252, 593388, 609871, 1219742, 1829613, 2439484, 3659226, 5488839, 7318452, 10977678, 21955356]

約数ペア:

[(1, 21955356), (2, 10977678), (3, 7318452), (4, 5488839), (6, 3659226), (9, 2439484), (12, 1829613), (18, 1219742), (36, 609871), (37, 593388), (53, 414252), (74, 296694), (106, 207126), (111, 197796), (148, 148347), (159, 138084), (212, 103563), (222, 98898), (311, 70596), (318, 69042), (333, 65932), (444, 49449), (477, 46028), (622, 35298), (636, 34521), (666, 32966), (933, 23532), (954, 23014), (1244, 17649), (1332, 16483), (1866, 11766), (1908, 11507), (1961, 11196), (2799, 7844), (3732, 5883), (3922, 5598)]