21508655610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{124493}}^1$

素因数の和:124959

約数の個数: 64

約数和(自身を含む): 55717538688

約数和(自身を除く): 34208883078

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 443, 886, 1329, 2215, 2658, 4430, 5759, 6645, 11518, 13290, 17277, 28795, 34554, 57590, 86385, 124493, 172770, 248986, 373479, 622465, 746958, 1244930, 1618409, 1867395, 3236818, 3734790, 4855227, 8092045, 9710454, 16184090, 24276135, 48552270, 55150399, 110300798, 165451197, 275751995, 330902394, 551503990, 716955187, 827255985, 1433910374, 1654511970, 2150865561, 3584775935, 4301731122, 7169551870, 10754327805, 21508655610]

約数ペア:

[(1, 21508655610), (2, 10754327805), (3, 7169551870), (5, 4301731122), (6, 3584775935), (10, 2150865561), (13, 1654511970), (15, 1433910374), (26, 827255985), (30, 716955187), (39, 551503990), (65, 330902394), (78, 275751995), (130, 165451197), (195, 110300798), (390, 55150399), (443, 48552270), (886, 24276135), (1329, 16184090), (2215, 9710454), (2658, 8092045), (4430, 4855227), (5759, 3734790), (6645, 3236818), (11518, 1867395), (13290, 1618409), (17277, 1244930), (28795, 746958), (34554, 622465), (57590, 373479), (86385, 248986), (124493, 172770)]