20841810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:619

約数の個数: 64

約数和(自身を含む): 55085184

約数和(自身を除く): 34243374

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 137, 165, 274, 330, 411, 461, 685, 822, 922, 1370, 1383, 1507, 2055, 2305, 2766, 3014, 4110, 4521, 4610, 5071, 6915, 7535, 9042, 10142, 13830, 15070, 15213, 22605, 25355, 30426, 45210, 50710, 63157, 76065, 126314, 152130, 189471, 315785, 378942, 631570, 694727, 947355, 1389454, 1894710, 2084181, 3473635, 4168362, 6947270, 10420905, 20841810]

約数ペア:

[(1, 20841810), (2, 10420905), (3, 6947270), (5, 4168362), (6, 3473635), (10, 2084181), (11, 1894710), (15, 1389454), (22, 947355), (30, 694727), (33, 631570), (55, 378942), (66, 315785), (110, 189471), (137, 152130), (165, 126314), (274, 76065), (330, 63157), (411, 50710), (461, 45210), (685, 30426), (822, 25355), (922, 22605), (1370, 15213), (1383, 15070), (1507, 13830), (2055, 10142), (2305, 9042), (2766, 7535), (3014, 6915), (4110, 5071), (4521, 4610)]