21958664

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 53625600

約数和(自身を除く): 31666936

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 49, 52, 56, 62, 91, 98, 104, 124, 139, 182, 196, 217, 248, 278, 364, 392, 403, 434, 556, 637, 728, 806, 868, 973, 1112, 1274, 1519, 1612, 1736, 1807, 1946, 2548, 2821, 3038, 3224, 3614, 3892, 4309, 5096, 5642, 6076, 6811, 7228, 7784, 8618, 11284, 12152, 12649, 13622, 14456, 17236, 19747, 22568, 25298, 27244, 30163, 34472, 39494, 50596, 54488, 56017, 60326, 78988, 88543, 101192, 112034, 120652, 157976, 177086, 211141, 224068, 241304, 354172, 392119, 422282, 448136, 708344, 784238, 844564, 1568476, 1689128, 2744833, 3136952, 5489666, 10979332, 21958664]

約数ペア:

[(1, 21958664), (2, 10979332), (4, 5489666), (7, 3136952), (8, 2744833), (13, 1689128), (14, 1568476), (26, 844564), (28, 784238), (31, 708344), (49, 448136), (52, 422282), (56, 392119), (62, 354172), (91, 241304), (98, 224068), (104, 211141), (124, 177086), (139, 157976), (182, 120652), (196, 112034), (217, 101192), (248, 88543), (278, 78988), (364, 60326), (392, 56017), (403, 54488), (434, 50596), (556, 39494), (637, 34472), (728, 30163), (806, 27244), (868, 25298), (973, 22568), (1112, 19747), (1274, 17236), (1519, 14456), (1612, 13622), (1736, 12649), (1807, 12152), (1946, 11284), (2548, 8618), (2821, 7784), (3038, 7228), (3224, 6811), (3614, 6076), (3892, 5642), (4309, 5096)]