21303156820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{61403}}^1$

素因数の和:61525

約数の個数: 96

約数和(自身を含む): 51991994880

約数和(自身を除く): 30688838060

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 83, 95, 110, 166, 190, 209, 220, 332, 380, 415, 418, 830, 836, 913, 1045, 1577, 1660, 1826, 2090, 3154, 3652, 4180, 4565, 6308, 7885, 9130, 15770, 17347, 18260, 31540, 34694, 61403, 69388, 86735, 122806, 173470, 245612, 307015, 346940, 614030, 675433, 1166657, 1228060, 1350866, 2333314, 2701732, 3377165, 4666628, 5096449, 5833285, 6754330, 10192898, 11666570, 12833227, 13508660, 20385796, 23333140, 25482245, 25666454, 50964490, 51332908, 56060939, 64166135, 96832531, 101928980, 112121878, 128332270, 193665062, 224243756, 256664540, 280304695, 387330124, 484162655, 560609390, 968325310, 1065157841, 1121218780, 1936650620, 2130315682, 4260631364, 5325789205, 10651578410, 21303156820]

約数ペア:

[(1, 21303156820), (2, 10651578410), (4, 5325789205), (5, 4260631364), (10, 2130315682), (11, 1936650620), (19, 1121218780), (20, 1065157841), (22, 968325310), (38, 560609390), (44, 484162655), (55, 387330124), (76, 280304695), (83, 256664540), (95, 224243756), (110, 193665062), (166, 128332270), (190, 112121878), (209, 101928980), (220, 96832531), (332, 64166135), (380, 56060939), (415, 51332908), (418, 50964490), (830, 25666454), (836, 25482245), (913, 23333140), (1045, 20385796), (1577, 13508660), (1660, 12833227), (1826, 11666570), (2090, 10192898), (3154, 6754330), (3652, 5833285), (4180, 5096449), (4565, 4666628), (6308, 3377165), (7885, 2701732), (9130, 2333314), (15770, 1350866), (17347, 1228060), (18260, 1166657), (31540, 675433), (34694, 614030), (61403, 346940), (69388, 307015), (86735, 245612), (122806, 173470)]