21929460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{7459}}^1$

素因数の和:7485

約数の個数: 72

約数和(自身を含む): 71436960

約数和(自身を除く): 49507500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 7459, 14918, 22377, 29836, 37295, 44754, 52213, 74590, 89508, 104426, 111885, 149180, 156639, 208852, 223770, 261065, 313278, 365491, 447540, 522130, 626556, 730982, 783195, 1044260, 1096473, 1461964, 1566390, 1827455, 2192946, 3132780, 3654910, 4385892, 5482365, 7309820, 10964730, 21929460]

約数ペア:

[(1, 21929460), (2, 10964730), (3, 7309820), (4, 5482365), (5, 4385892), (6, 3654910), (7, 3132780), (10, 2192946), (12, 1827455), (14, 1566390), (15, 1461964), (20, 1096473), (21, 1044260), (28, 783195), (30, 730982), (35, 626556), (42, 522130), (49, 447540), (60, 365491), (70, 313278), (84, 261065), (98, 223770), (105, 208852), (140, 156639), (147, 149180), (196, 111885), (210, 104426), (245, 89508), (294, 74590), (420, 52213), (490, 44754), (588, 37295), (735, 29836), (980, 22377), (1470, 14918), (2940, 7459)]