84218421

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{401}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 131367168

約数和(自身を除く): 47148747

約数列:

[1, 3, 7, 21, 73, 137, 219, 401, 411, 511, 959, 1203, 1533, 2807, 2877, 8421, 10001, 29273, 30003, 54937, 70007, 87819, 164811, 204911, 210021, 384559, 614733, 1153677, 4010401, 12031203, 28072807, 84218421]

約数ペア:

[(1, 84218421), (3, 28072807), (7, 12031203), (21, 4010401), (73, 1153677), (137, 614733), (219, 384559), (401, 210021), (411, 204911), (511, 164811), (959, 87819), (1203, 70007), (1533, 54937), (2807, 30003), (2877, 29273), (8421, 10001)]