21153460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{55667}}^1$

素因数の和:55695

約数の個数: 24

約数和(自身を含む): 46761120

約数和(自身を除く): 25607660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 55667, 111334, 222668, 278335, 556670, 1057673, 1113340, 2115346, 4230692, 5288365, 10576730, 21153460]

約数ペア:

[(1, 21153460), (2, 10576730), (4, 5288365), (5, 4230692), (10, 2115346), (19, 1113340), (20, 1057673), (38, 556670), (76, 278335), (95, 222668), (190, 111334), (380, 55667)]