221449851

素因数分解:

$3^2\times 7^1\times {\mathrm{991}}^1\times {\mathrm{3547}}^1$

素因数の和:4551

約数の個数: 24

約数和(自身を含む): 366040064

約数和(自身を除く): 144590213

約数列:

[1, 3, 7, 9, 21, 63, 991, 2973, 3547, 6937, 8919, 10641, 20811, 24829, 31923, 62433, 74487, 223461, 3515077, 10545231, 24605539, 31635693, 73816617, 221449851]

約数ペア:

[(1, 221449851), (3, 73816617), (7, 31635693), (9, 24605539), (21, 10545231), (63, 3515077), (991, 223461), (2973, 74487), (3547, 62433), (6937, 31923), (8919, 24829), (10641, 20811)]