21958300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 62218240

約数和(自身を除く): 40259940

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 25, 26, 28, 35, 38, 50, 52, 65, 70, 76, 91, 95, 100, 127, 130, 133, 140, 175, 182, 190, 247, 254, 260, 266, 325, 350, 364, 380, 455, 475, 494, 508, 532, 635, 650, 665, 700, 889, 910, 950, 988, 1235, 1270, 1300, 1330, 1651, 1729, 1778, 1820, 1900, 2275, 2413, 2470, 2540, 2660, 3175, 3302, 3325, 3458, 3556, 4445, 4550, 4826, 4940, 6175, 6350, 6604, 6650, 6916, 8255, 8645, 8890, 9100, 9652, 11557, 12065, 12350, 12700, 13300, 16510, 16891, 17290, 17780, 22225, 23114, 24130, 24700, 31369, 33020, 33782, 34580, 41275, 43225, 44450, 46228, 48260, 57785, 60325, 62738, 67564, 82550, 84455, 86450, 88900, 115570, 120650, 125476, 156845, 165100, 168910, 172900, 219583, 231140, 241300, 288925, 313690, 337820, 422275, 439166, 577850, 627380, 784225, 844550, 878332, 1097915, 1155700, 1568450, 1689100, 2195830, 3136900, 4391660, 5489575, 10979150, 21958300]

約数ペア:

[(1, 21958300), (2, 10979150), (4, 5489575), (5, 4391660), (7, 3136900), (10, 2195830), (13, 1689100), (14, 1568450), (19, 1155700), (20, 1097915), (25, 878332), (26, 844550), (28, 784225), (35, 627380), (38, 577850), (50, 439166), (52, 422275), (65, 337820), (70, 313690), (76, 288925), (91, 241300), (95, 231140), (100, 219583), (127, 172900), (130, 168910), (133, 165100), (140, 156845), (175, 125476), (182, 120650), (190, 115570), (247, 88900), (254, 86450), (260, 84455), (266, 82550), (325, 67564), (350, 62738), (364, 60325), (380, 57785), (455, 48260), (475, 46228), (494, 44450), (508, 43225), (532, 41275), (635, 34580), (650, 33782), (665, 33020), (700, 31369), (889, 24700), (910, 24130), (950, 23114), (988, 22225), (1235, 17780), (1270, 17290), (1300, 16891), (1330, 16510), (1651, 13300), (1729, 12700), (1778, 12350), (1820, 12065), (1900, 11557), (2275, 9652), (2413, 9100), (2470, 8890), (2540, 8645), (2660, 8255), (3175, 6916), (3302, 6650), (3325, 6604), (3458, 6350), (3556, 6175), (4445, 4940), (4550, 4826)]