21375165

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 41803776

約数和(自身を除く): 20428611

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 53, 69, 105, 115, 159, 161, 167, 265, 345, 371, 483, 501, 795, 805, 835, 1113, 1169, 1219, 1855, 2415, 2505, 3507, 3657, 3841, 5565, 5845, 6095, 8533, 8851, 11523, 17535, 18285, 19205, 25599, 26553, 26887, 42665, 44255, 57615, 61957, 80661, 127995, 132765, 134435, 185871, 203573, 309785, 403305, 610719, 929355, 1017865, 1425011, 3053595, 4275033, 7125055, 21375165]

約数ペア:

[(1, 21375165), (3, 7125055), (5, 4275033), (7, 3053595), (15, 1425011), (21, 1017865), (23, 929355), (35, 610719), (53, 403305), (69, 309785), (105, 203573), (115, 185871), (159, 134435), (161, 132765), (167, 127995), (265, 80661), (345, 61957), (371, 57615), (483, 44255), (501, 42665), (795, 26887), (805, 26553), (835, 25599), (1113, 19205), (1169, 18285), (1219, 17535), (1855, 11523), (2415, 8851), (2505, 8533), (3507, 6095), (3657, 5845), (3841, 5565)]