21445395

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1601}}^1$

素因数の和:1675

約数の個数: 32

約数和(自身を含む): 36910080

約数和(自身を除く): 15464685

約数列:

[1, 3, 5, 15, 19, 47, 57, 95, 141, 235, 285, 705, 893, 1601, 2679, 4465, 4803, 8005, 13395, 24015, 30419, 75247, 91257, 152095, 225741, 376235, 456285, 1128705, 1429693, 4289079, 7148465, 21445395]

約数ペア:

[(1, 21445395), (3, 7148465), (5, 4289079), (15, 1429693), (19, 1128705), (47, 456285), (57, 376235), (95, 225741), (141, 152095), (235, 91257), (285, 75247), (705, 30419), (893, 24015), (1601, 13395), (2679, 8005), (4465, 4803)]