21713865

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1249}}^1$

素因数の和:1337

約数の個数: 32

約数和(自身を含む): 37200000

約数和(自身を除く): 15486135

約数列:

[1, 3, 5, 15, 19, 57, 61, 95, 183, 285, 305, 915, 1159, 1249, 3477, 3747, 5795, 6245, 17385, 18735, 23731, 71193, 76189, 118655, 228567, 355965, 380945, 1142835, 1447591, 4342773, 7237955, 21713865]

約数ペア:

[(1, 21713865), (3, 7237955), (5, 4342773), (15, 1447591), (19, 1142835), (57, 380945), (61, 355965), (95, 228567), (183, 118655), (285, 76189), (305, 71193), (915, 23731), (1159, 18735), (1249, 17385), (3477, 6245), (3747, 5795)]