21993392

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{383}}^1$

素因数の和:525

約数の個数: 40

約数和(自身を含む): 44330496

約数和(自身を除く): 22337104

約数列:

[1, 2, 4, 8, 16, 37, 74, 97, 148, 194, 296, 383, 388, 592, 766, 776, 1532, 1552, 3064, 3589, 6128, 7178, 14171, 14356, 28342, 28712, 37151, 56684, 57424, 74302, 113368, 148604, 226736, 297208, 594416, 1374587, 2749174, 5498348, 10996696, 21993392]

約数ペア:

[(1, 21993392), (2, 10996696), (4, 5498348), (8, 2749174), (16, 1374587), (37, 594416), (74, 297208), (97, 226736), (148, 148604), (194, 113368), (296, 74302), (383, 57424), (388, 56684), (592, 37151), (766, 28712), (776, 28342), (1532, 14356), (1552, 14171), (3064, 7178), (3589, 6128)]