21149688

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{131}}^1$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 62916480

約数和(自身を除く): 41766792

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 56, 62, 84, 93, 124, 131, 168, 186, 217, 248, 262, 372, 393, 434, 524, 651, 744, 786, 868, 917, 961, 1048, 1302, 1572, 1736, 1834, 1922, 2604, 2751, 2883, 3144, 3668, 3844, 4061, 5208, 5502, 5766, 6727, 7336, 7688, 8122, 11004, 11532, 12183, 13454, 16244, 20181, 22008, 23064, 24366, 26908, 28427, 32488, 40362, 48732, 53816, 56854, 80724, 85281, 97464, 113708, 125891, 161448, 170562, 227416, 251782, 341124, 377673, 503564, 682248, 755346, 881237, 1007128, 1510692, 1762474, 2643711, 3021384, 3524948, 5287422, 7049896, 10574844, 21149688]

約数ペア:

[(1, 21149688), (2, 10574844), (3, 7049896), (4, 5287422), (6, 3524948), (7, 3021384), (8, 2643711), (12, 1762474), (14, 1510692), (21, 1007128), (24, 881237), (28, 755346), (31, 682248), (42, 503564), (56, 377673), (62, 341124), (84, 251782), (93, 227416), (124, 170562), (131, 161448), (168, 125891), (186, 113708), (217, 97464), (248, 85281), (262, 80724), (372, 56854), (393, 53816), (434, 48732), (524, 40362), (651, 32488), (744, 28427), (786, 26908), (868, 24366), (917, 23064), (961, 22008), (1048, 20181), (1302, 16244), (1572, 13454), (1736, 12183), (1834, 11532), (1922, 11004), (2604, 8122), (2751, 7688), (2883, 7336), (3144, 6727), (3668, 5766), (3844, 5502), (4061, 5208)]