21697970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13477}}^1$

素因数の和:13514

約数の個数: 32

約数和(自身を含む): 46579968

約数和(自身を除く): 24881998

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 13477, 26954, 67385, 94339, 134770, 188678, 309971, 471695, 619942, 943390, 1549855, 2169797, 3099710, 4339594, 10848985, 21697970]

約数ペア:

[(1, 21697970), (2, 10848985), (5, 4339594), (7, 3099710), (10, 2169797), (14, 1549855), (23, 943390), (35, 619942), (46, 471695), (70, 309971), (115, 188678), (161, 134770), (230, 94339), (322, 67385), (805, 26954), (1610, 13477)]