21630664

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:814

約数の個数: 64

約数和(自身を含む): 49377600

約数和(自身を除く): 27746936

約数列:

[1, 2, 4, 8, 11, 17, 19, 22, 34, 38, 44, 68, 76, 88, 136, 152, 187, 209, 323, 374, 418, 646, 748, 761, 836, 1292, 1496, 1522, 1672, 2584, 3044, 3553, 6088, 7106, 8371, 12937, 14212, 14459, 16742, 25874, 28424, 28918, 33484, 51748, 57836, 66968, 103496, 115672, 142307, 159049, 245803, 284614, 318098, 491606, 569228, 636196, 983212, 1138456, 1272392, 1966424, 2703833, 5407666, 10815332, 21630664]

約数ペア:

[(1, 21630664), (2, 10815332), (4, 5407666), (8, 2703833), (11, 1966424), (17, 1272392), (19, 1138456), (22, 983212), (34, 636196), (38, 569228), (44, 491606), (68, 318098), (76, 284614), (88, 245803), (136, 159049), (152, 142307), (187, 115672), (209, 103496), (323, 66968), (374, 57836), (418, 51748), (646, 33484), (748, 28918), (761, 28424), (836, 25874), (1292, 16742), (1496, 14459), (1522, 14212), (1672, 12937), (2584, 8371), (3044, 7106), (3553, 6088)]