19716992

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{4969}}^1$

素因数の和:5014

約数の個数: 32

約数和(自身を含む): 40555200

約数和(自身を除く): 20838208

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 4969, 9938, 19876, 39752, 79504, 154039, 159008, 308078, 318016, 616156, 636032, 1232312, 2464624, 4929248, 9858496, 19716992]

約数ペア:

[(1, 19716992), (2, 9858496), (4, 4929248), (8, 2464624), (16, 1232312), (31, 636032), (32, 616156), (62, 318016), (64, 308078), (124, 159008), (128, 154039), (248, 79504), (496, 39752), (992, 19876), (1984, 9938), (3968, 4969)]