21114100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:198

約数の個数: 108

約数和(自身を含む): 55413120

約数和(自身を除く): 34299020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 49, 50, 62, 70, 98, 100, 124, 139, 140, 155, 175, 196, 217, 245, 278, 310, 350, 434, 490, 556, 620, 695, 700, 775, 868, 973, 980, 1085, 1225, 1390, 1519, 1550, 1946, 2170, 2450, 2780, 3038, 3100, 3475, 3892, 4309, 4340, 4865, 4900, 5425, 6076, 6811, 6950, 7595, 8618, 9730, 10850, 13622, 13900, 15190, 17236, 19460, 21545, 21700, 24325, 27244, 30163, 30380, 34055, 37975, 43090, 48650, 60326, 68110, 75950, 86180, 97300, 107725, 120652, 136220, 150815, 151900, 170275, 211141, 215450, 301630, 340550, 422282, 430900, 603260, 681100, 754075, 844564, 1055705, 1508150, 2111410, 3016300, 4222820, 5278525, 10557050, 21114100]

約数ペア:

[(1, 21114100), (2, 10557050), (4, 5278525), (5, 4222820), (7, 3016300), (10, 2111410), (14, 1508150), (20, 1055705), (25, 844564), (28, 754075), (31, 681100), (35, 603260), (49, 430900), (50, 422282), (62, 340550), (70, 301630), (98, 215450), (100, 211141), (124, 170275), (139, 151900), (140, 150815), (155, 136220), (175, 120652), (196, 107725), (217, 97300), (245, 86180), (278, 75950), (310, 68110), (350, 60326), (434, 48650), (490, 43090), (556, 37975), (620, 34055), (695, 30380), (700, 30163), (775, 27244), (868, 24325), (973, 21700), (980, 21545), (1085, 19460), (1225, 17236), (1390, 15190), (1519, 13900), (1550, 13622), (1946, 10850), (2170, 9730), (2450, 8618), (2780, 7595), (3038, 6950), (3100, 6811), (3475, 6076), (3892, 5425), (4309, 4900), (4340, 4865)]