19211816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 41126400

約数和(自身を除く): 21914584

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 59, 62, 101, 104, 118, 124, 202, 236, 248, 403, 404, 472, 767, 806, 808, 1313, 1534, 1612, 1829, 2626, 3068, 3131, 3224, 3658, 5252, 5959, 6136, 6262, 7316, 10504, 11918, 12524, 14632, 23777, 23836, 25048, 40703, 47554, 47672, 77467, 81406, 95108, 154934, 162812, 184729, 190216, 309868, 325624, 369458, 619736, 738916, 1477832, 2401477, 4802954, 9605908, 19211816]

約数ペア:

[(1, 19211816), (2, 9605908), (4, 4802954), (8, 2401477), (13, 1477832), (26, 738916), (31, 619736), (52, 369458), (59, 325624), (62, 309868), (101, 190216), (104, 184729), (118, 162812), (124, 154934), (202, 95108), (236, 81406), (248, 77467), (403, 47672), (404, 47554), (472, 40703), (767, 25048), (806, 23836), (808, 23777), (1313, 14632), (1534, 12524), (1612, 11918), (1829, 10504), (2626, 7316), (3068, 6262), (3131, 6136), (3224, 5959), (3658, 5252)]