21153640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14293}}^1$

素因数の和:14341

約数の個数: 32

約数和(自身を含む): 48885480

約数和(自身を除く): 27731840

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14293, 28586, 57172, 71465, 114344, 142930, 285860, 528841, 571720, 1057682, 2115364, 2644205, 4230728, 5288410, 10576820, 21153640]

約数ペア:

[(1, 21153640), (2, 10576820), (4, 5288410), (5, 4230728), (8, 2644205), (10, 2115364), (20, 1057682), (37, 571720), (40, 528841), (74, 285860), (148, 142930), (185, 114344), (296, 71465), (370, 57172), (740, 28586), (1480, 14293)]