21206500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:182

約数の個数: 96

約数和(自身を含む): 54302976

約数和(自身を除く): 33096476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 73, 83, 100, 125, 140, 146, 166, 175, 250, 292, 332, 350, 365, 415, 500, 511, 581, 700, 730, 830, 875, 1022, 1162, 1460, 1660, 1750, 1825, 2044, 2075, 2324, 2555, 2905, 3500, 3650, 4150, 5110, 5810, 6059, 7300, 8300, 9125, 10220, 10375, 11620, 12118, 12775, 14525, 18250, 20750, 24236, 25550, 29050, 30295, 36500, 41500, 42413, 51100, 58100, 60590, 63875, 72625, 84826, 121180, 127750, 145250, 151475, 169652, 212065, 255500, 290500, 302950, 424130, 605900, 757375, 848260, 1060325, 1514750, 2120650, 3029500, 4241300, 5301625, 10603250, 21206500]

約数ペア:

[(1, 21206500), (2, 10603250), (4, 5301625), (5, 4241300), (7, 3029500), (10, 2120650), (14, 1514750), (20, 1060325), (25, 848260), (28, 757375), (35, 605900), (50, 424130), (70, 302950), (73, 290500), (83, 255500), (100, 212065), (125, 169652), (140, 151475), (146, 145250), (166, 127750), (175, 121180), (250, 84826), (292, 72625), (332, 63875), (350, 60590), (365, 58100), (415, 51100), (500, 42413), (511, 41500), (581, 36500), (700, 30295), (730, 29050), (830, 25550), (875, 24236), (1022, 20750), (1162, 18250), (1460, 14525), (1660, 12775), (1750, 12118), (1825, 11620), (2044, 10375), (2075, 10220), (2324, 9125), (2555, 8300), (2905, 7300), (3500, 6059), (3650, 5810), (4150, 5110)]