21922485

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 40830720

約数和(自身を除く): 18908235

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 61, 65, 95, 97, 183, 195, 247, 285, 291, 305, 485, 741, 793, 915, 1159, 1235, 1261, 1455, 1843, 2379, 3477, 3705, 3783, 3965, 5529, 5795, 5917, 6305, 9215, 11895, 15067, 17385, 17751, 18915, 23959, 27645, 29585, 45201, 71877, 75335, 76921, 88755, 112423, 119795, 226005, 230763, 337269, 359385, 384605, 562115, 1153815, 1461499, 1686345, 4384497, 7307495, 21922485]

約数ペア:

[(1, 21922485), (3, 7307495), (5, 4384497), (13, 1686345), (15, 1461499), (19, 1153815), (39, 562115), (57, 384605), (61, 359385), (65, 337269), (95, 230763), (97, 226005), (183, 119795), (195, 112423), (247, 88755), (285, 76921), (291, 75335), (305, 71877), (485, 45201), (741, 29585), (793, 27645), (915, 23959), (1159, 18915), (1235, 17751), (1261, 17385), (1455, 15067), (1843, 11895), (2379, 9215), (3477, 6305), (3705, 5917), (3783, 5795), (3965, 5529)]