21353976

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:538

約数の個数: 128

約数和(自身を含む): 70272000

約数和(自身を除く): 48918024

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 29, 36, 42, 54, 56, 58, 63, 72, 84, 87, 108, 116, 126, 168, 174, 189, 203, 216, 232, 252, 261, 348, 378, 406, 487, 504, 522, 609, 696, 756, 783, 812, 974, 1044, 1218, 1461, 1512, 1566, 1624, 1827, 1948, 2088, 2436, 2922, 3132, 3409, 3654, 3896, 4383, 4872, 5481, 5844, 6264, 6818, 7308, 8766, 10227, 10962, 11688, 13149, 13636, 14123, 14616, 17532, 20454, 21924, 26298, 27272, 28246, 30681, 35064, 40908, 42369, 43848, 52596, 56492, 61362, 81816, 84738, 92043, 98861, 105192, 112984, 122724, 127107, 169476, 184086, 197722, 245448, 254214, 296583, 338952, 368172, 381321, 395444, 508428, 593166, 736344, 762642, 790888, 889749, 1016856, 1186332, 1525284, 1779498, 2372664, 2669247, 3050568, 3558996, 5338494, 7117992, 10676988, 21353976]

約数ペア:

[(1, 21353976), (2, 10676988), (3, 7117992), (4, 5338494), (6, 3558996), (7, 3050568), (8, 2669247), (9, 2372664), (12, 1779498), (14, 1525284), (18, 1186332), (21, 1016856), (24, 889749), (27, 790888), (28, 762642), (29, 736344), (36, 593166), (42, 508428), (54, 395444), (56, 381321), (58, 368172), (63, 338952), (72, 296583), (84, 254214), (87, 245448), (108, 197722), (116, 184086), (126, 169476), (168, 127107), (174, 122724), (189, 112984), (203, 105192), (216, 98861), (232, 92043), (252, 84738), (261, 81816), (348, 61362), (378, 56492), (406, 52596), (487, 43848), (504, 42369), (522, 40908), (609, 35064), (696, 30681), (756, 28246), (783, 27272), (812, 26298), (974, 21924), (1044, 20454), (1218, 17532), (1461, 14616), (1512, 14123), (1566, 13636), (1624, 13149), (1827, 11688), (1948, 10962), (2088, 10227), (2436, 8766), (2922, 7308), (3132, 6818), (3409, 6264), (3654, 5844), (3896, 5481), (4383, 4872)]