21473734140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{499157}}^1$

素因数の和:499411

約数の個数: 72

約数和(自身を含む): 65409664320

約数和(自身を除く): 43935930180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 478, 717, 956, 1195, 1434, 2151, 2390, 2868, 3585, 4302, 4780, 7170, 8604, 10755, 14340, 21510, 43020, 499157, 998314, 1497471, 1996628, 2495785, 2994942, 4492413, 4991570, 5989884, 7487355, 8984826, 9983140, 14974710, 17969652, 22462065, 29949420, 44924130, 89848260, 119298523, 238597046, 357895569, 477194092, 596492615, 715791138, 1073686707, 1192985230, 1431582276, 1789477845, 2147373414, 2385970460, 3578955690, 4294746828, 5368433535, 7157911380, 10736867070, 21473734140]

約数ペア:

[(1, 21473734140), (2, 10736867070), (3, 7157911380), (4, 5368433535), (5, 4294746828), (6, 3578955690), (9, 2385970460), (10, 2147373414), (12, 1789477845), (15, 1431582276), (18, 1192985230), (20, 1073686707), (30, 715791138), (36, 596492615), (45, 477194092), (60, 357895569), (90, 238597046), (180, 119298523), (239, 89848260), (478, 44924130), (717, 29949420), (956, 22462065), (1195, 17969652), (1434, 14974710), (2151, 9983140), (2390, 8984826), (2868, 7487355), (3585, 5989884), (4302, 4991570), (4780, 4492413), (7170, 2994942), (8604, 2495785), (10755, 1996628), (14340, 1497471), (21510, 998314), (43020, 499157)]