21103684

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{593}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 23603132

約数列:

[1, 2, 4, 7, 14, 28, 31, 41, 62, 82, 124, 164, 217, 287, 434, 574, 593, 868, 1148, 1186, 1271, 2372, 2542, 4151, 5084, 8302, 8897, 16604, 17794, 18383, 24313, 35588, 36766, 48626, 73532, 97252, 128681, 170191, 257362, 340382, 514724, 680764, 753703, 1507406, 3014812, 5275921, 10551842, 21103684]

約数ペア:

[(1, 21103684), (2, 10551842), (4, 5275921), (7, 3014812), (14, 1507406), (28, 753703), (31, 680764), (41, 514724), (62, 340382), (82, 257362), (124, 170191), (164, 128681), (217, 97252), (287, 73532), (434, 48626), (574, 36766), (593, 35588), (868, 24313), (1148, 18383), (1186, 17794), (1271, 16604), (2372, 8897), (2542, 8302), (4151, 5084)]