21706720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19381}}^1$

素因数の和:19403

約数の個数: 48

約数和(自身を含む): 58611168

約数和(自身を除く): 36904448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 19381, 38762, 77524, 96905, 135667, 155048, 193810, 271334, 310096, 387620, 542668, 620192, 678335, 775240, 1085336, 1356670, 1550480, 2170672, 2713340, 3100960, 4341344, 5426680, 10853360, 21706720]

約数ペア:

[(1, 21706720), (2, 10853360), (4, 5426680), (5, 4341344), (7, 3100960), (8, 2713340), (10, 2170672), (14, 1550480), (16, 1356670), (20, 1085336), (28, 775240), (32, 678335), (35, 620192), (40, 542668), (56, 387620), (70, 310096), (80, 271334), (112, 193810), (140, 155048), (160, 135667), (224, 96905), (280, 77524), (560, 38762), (1120, 19381)]