21341940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:321

約数の個数: 96

約数和(自身を含む): 63880320

約数和(自身を除く): 42538380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 97, 114, 190, 193, 194, 228, 285, 291, 380, 386, 388, 485, 570, 579, 582, 772, 965, 970, 1140, 1158, 1164, 1455, 1843, 1930, 1940, 2316, 2895, 2910, 3667, 3686, 3860, 5529, 5790, 5820, 7334, 7372, 9215, 11001, 11058, 11580, 14668, 18335, 18430, 18721, 22002, 22116, 27645, 36670, 36860, 37442, 44004, 55005, 55290, 56163, 73340, 74884, 93605, 110010, 110580, 112326, 187210, 220020, 224652, 280815, 355699, 374420, 561630, 711398, 1067097, 1123260, 1422796, 1778495, 2134194, 3556990, 4268388, 5335485, 7113980, 10670970, 21341940]

約数ペア:

[(1, 21341940), (2, 10670970), (3, 7113980), (4, 5335485), (5, 4268388), (6, 3556990), (10, 2134194), (12, 1778495), (15, 1422796), (19, 1123260), (20, 1067097), (30, 711398), (38, 561630), (57, 374420), (60, 355699), (76, 280815), (95, 224652), (97, 220020), (114, 187210), (190, 112326), (193, 110580), (194, 110010), (228, 93605), (285, 74884), (291, 73340), (380, 56163), (386, 55290), (388, 55005), (485, 44004), (570, 37442), (579, 36860), (582, 36670), (772, 27645), (965, 22116), (970, 22002), (1140, 18721), (1158, 18430), (1164, 18335), (1455, 14668), (1843, 11580), (1930, 11058), (1940, 11001), (2316, 9215), (2895, 7372), (2910, 7334), (3667, 5820), (3686, 5790), (3860, 5529)]