21529690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{401}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 48625920

約数和(自身を除く): 27096230

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 59, 65, 70, 91, 118, 130, 182, 295, 401, 413, 455, 590, 767, 802, 826, 910, 1534, 2005, 2065, 2807, 3835, 4010, 4130, 5213, 5369, 5614, 7670, 10426, 10738, 14035, 23659, 26065, 26845, 28070, 36491, 47318, 52130, 53690, 72982, 118295, 165613, 182455, 236590, 307567, 331226, 364910, 615134, 828065, 1537835, 1656130, 2152969, 3075670, 4305938, 10764845, 21529690]

約数ペア:

[(1, 21529690), (2, 10764845), (5, 4305938), (7, 3075670), (10, 2152969), (13, 1656130), (14, 1537835), (26, 828065), (35, 615134), (59, 364910), (65, 331226), (70, 307567), (91, 236590), (118, 182455), (130, 165613), (182, 118295), (295, 72982), (401, 53690), (413, 52130), (455, 47318), (590, 36491), (767, 28070), (802, 26845), (826, 26065), (910, 23659), (1534, 14035), (2005, 10738), (2065, 10426), (2807, 7670), (3835, 5614), (4010, 5369), (4130, 5213)]