21163340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 52496640

約数和(自身を除く): 31333300

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 61, 76, 83, 95, 110, 122, 166, 190, 209, 220, 244, 305, 332, 380, 415, 418, 610, 671, 830, 836, 913, 1045, 1159, 1220, 1342, 1577, 1660, 1826, 2090, 2318, 2684, 3154, 3355, 3652, 4180, 4565, 4636, 5063, 5795, 6308, 6710, 7885, 9130, 10126, 11590, 12749, 13420, 15770, 17347, 18260, 20252, 23180, 25315, 25498, 31540, 34694, 50630, 50996, 55693, 63745, 69388, 86735, 96197, 101260, 111386, 127490, 173470, 192394, 222772, 254980, 278465, 346940, 384788, 480985, 556930, 961970, 1058167, 1113860, 1923940, 2116334, 4232668, 5290835, 10581670, 21163340]

約数ペア:

[(1, 21163340), (2, 10581670), (4, 5290835), (5, 4232668), (10, 2116334), (11, 1923940), (19, 1113860), (20, 1058167), (22, 961970), (38, 556930), (44, 480985), (55, 384788), (61, 346940), (76, 278465), (83, 254980), (95, 222772), (110, 192394), (122, 173470), (166, 127490), (190, 111386), (209, 101260), (220, 96197), (244, 86735), (305, 69388), (332, 63745), (380, 55693), (415, 50996), (418, 50630), (610, 34694), (671, 31540), (830, 25498), (836, 25315), (913, 23180), (1045, 20252), (1159, 18260), (1220, 17347), (1342, 15770), (1577, 13420), (1660, 12749), (1826, 11590), (2090, 10126), (2318, 9130), (2684, 7885), (3154, 6710), (3355, 6308), (3652, 5795), (4180, 5063), (4565, 4636)]