21594640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{14207}}^1$

素因数の和:14239

約数の個数: 40

約数和(自身を含む): 52853760

約数和(自身を除く): 31259120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 14207, 28414, 56828, 71035, 113656, 142070, 227312, 269933, 284140, 539866, 568280, 1079732, 1136560, 1349665, 2159464, 2699330, 4318928, 5398660, 10797320, 21594640]

約数ペア:

[(1, 21594640), (2, 10797320), (4, 5398660), (5, 4318928), (8, 2699330), (10, 2159464), (16, 1349665), (19, 1136560), (20, 1079732), (38, 568280), (40, 539866), (76, 284140), (80, 269933), (95, 227312), (152, 142070), (190, 113656), (304, 71035), (380, 56828), (760, 28414), (1520, 14207)]