21223710040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{179801}}^1$

素因数の和:180052

約数の個数: 64

約数和(自身を含む): 51653518560

約数和(自身を除く): 30429808520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 227, 260, 454, 520, 908, 1135, 1816, 2270, 2951, 4540, 5902, 9080, 11804, 14755, 23608, 29510, 59020, 118040, 179801, 359602, 719204, 899005, 1438408, 1798010, 2337413, 3596020, 4674826, 7192040, 9349652, 11687065, 18699304, 23374130, 40814827, 46748260, 81629654, 93496520, 163259308, 204074135, 326518616, 408148270, 530592751, 816296540, 1061185502, 1632593080, 2122371004, 2652963755, 4244742008, 5305927510, 10611855020, 21223710040]

約数ペア:

[(1, 21223710040), (2, 10611855020), (4, 5305927510), (5, 4244742008), (8, 2652963755), (10, 2122371004), (13, 1632593080), (20, 1061185502), (26, 816296540), (40, 530592751), (52, 408148270), (65, 326518616), (104, 204074135), (130, 163259308), (227, 93496520), (260, 81629654), (454, 46748260), (520, 40814827), (908, 23374130), (1135, 18699304), (1816, 11687065), (2270, 9349652), (2951, 7192040), (4540, 4674826), (5902, 3596020), (9080, 2337413), (11804, 1798010), (14755, 1438408), (23608, 899005), (29510, 719204), (59020, 359602), (118040, 179801)]