21639060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{503}}^1$

素因数の和:757

約数の個数: 72

約数和(自身を含む): 66044160

約数和(自身を除く): 44405100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 478, 503, 717, 956, 1006, 1195, 1434, 1509, 2012, 2151, 2390, 2515, 2868, 3018, 3585, 4302, 4527, 4780, 5030, 6036, 7170, 7545, 8604, 9054, 10060, 10755, 14340, 15090, 18108, 21510, 22635, 30180, 43020, 45270, 90540, 120217, 240434, 360651, 480868, 601085, 721302, 1081953, 1202170, 1442604, 1803255, 2163906, 2404340, 3606510, 4327812, 5409765, 7213020, 10819530, 21639060]

約数ペア:

[(1, 21639060), (2, 10819530), (3, 7213020), (4, 5409765), (5, 4327812), (6, 3606510), (9, 2404340), (10, 2163906), (12, 1803255), (15, 1442604), (18, 1202170), (20, 1081953), (30, 721302), (36, 601085), (45, 480868), (60, 360651), (90, 240434), (180, 120217), (239, 90540), (478, 45270), (503, 43020), (717, 30180), (956, 22635), (1006, 21510), (1195, 18108), (1434, 15090), (1509, 14340), (2012, 10755), (2151, 10060), (2390, 9054), (2515, 8604), (2868, 7545), (3018, 7170), (3585, 6036), (4302, 5030), (4527, 4780)]