21466240

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1973}}^1$

素因数の和:2009

約数の個数: 64

約数和(自身を含む): 54363960

約数和(自身を除く): 32897720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 1973, 2176, 2720, 3946, 5440, 7892, 9865, 10880, 15784, 19730, 31568, 33541, 39460, 63136, 67082, 78920, 126272, 134164, 157840, 167705, 252544, 268328, 315680, 335410, 536656, 631360, 670820, 1073312, 1262720, 1341640, 2146624, 2683280, 4293248, 5366560, 10733120, 21466240]

約数ペア:

[(1, 21466240), (2, 10733120), (4, 5366560), (5, 4293248), (8, 2683280), (10, 2146624), (16, 1341640), (17, 1262720), (20, 1073312), (32, 670820), (34, 631360), (40, 536656), (64, 335410), (68, 315680), (80, 268328), (85, 252544), (128, 167705), (136, 157840), (160, 134164), (170, 126272), (272, 78920), (320, 67082), (340, 63136), (544, 39460), (640, 33541), (680, 31568), (1088, 19730), (1360, 15784), (1973, 10880), (2176, 9865), (2720, 7892), (3946, 5440)]