20939648

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{9623}}^1$

素因数の和:9654

約数の個数: 32

約数和(自身を含む): 44174160

約数和(自身を除く): 23234512

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 272, 544, 1088, 2176, 9623, 19246, 38492, 76984, 153968, 163591, 307936, 327182, 615872, 654364, 1231744, 1308728, 2617456, 5234912, 10469824, 20939648]

約数ペア:

[(1, 20939648), (2, 10469824), (4, 5234912), (8, 2617456), (16, 1308728), (17, 1231744), (32, 654364), (34, 615872), (64, 327182), (68, 307936), (128, 163591), (136, 153968), (272, 76984), (544, 38492), (1088, 19246), (2176, 9623)]