21229460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:405

約数の個数: 96

約数和(自身を含む): 56125440

約数和(自身を除く): 34895980

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 23, 28, 35, 38, 46, 70, 76, 92, 95, 115, 133, 140, 161, 190, 230, 266, 322, 347, 380, 437, 460, 532, 644, 665, 694, 805, 874, 1330, 1388, 1610, 1735, 1748, 2185, 2429, 2660, 3059, 3220, 3470, 4370, 4858, 6118, 6593, 6940, 7981, 8740, 9716, 12145, 12236, 13186, 15295, 15962, 24290, 26372, 30590, 31924, 32965, 39905, 46151, 48580, 55867, 61180, 65930, 79810, 92302, 111734, 131860, 151639, 159620, 184604, 223468, 230755, 279335, 303278, 461510, 558670, 606556, 758195, 923020, 1061473, 1117340, 1516390, 2122946, 3032780, 4245892, 5307365, 10614730, 21229460]

約数ペア:

[(1, 21229460), (2, 10614730), (4, 5307365), (5, 4245892), (7, 3032780), (10, 2122946), (14, 1516390), (19, 1117340), (20, 1061473), (23, 923020), (28, 758195), (35, 606556), (38, 558670), (46, 461510), (70, 303278), (76, 279335), (92, 230755), (95, 223468), (115, 184604), (133, 159620), (140, 151639), (161, 131860), (190, 111734), (230, 92302), (266, 79810), (322, 65930), (347, 61180), (380, 55867), (437, 48580), (460, 46151), (532, 39905), (644, 32965), (665, 31924), (694, 30590), (805, 26372), (874, 24290), (1330, 15962), (1388, 15295), (1610, 13186), (1735, 12236), (1748, 12145), (2185, 9716), (2429, 8740), (2660, 7981), (3059, 6940), (3220, 6593), (3470, 6118), (4370, 4858)]